Pressure-induced change of the pairing symmetry in superconducting CeCu2Si2 (2009)
Lengyel, E., Nicklas, M., Jeevan, H. S., Sparn, G., Geibel, C., Steglich, F., ...
Low-temperature (T) heat-capacity measurements under hydrostatic pressure of up to p=2.1 GPa have been performed on single-crystalline CeCu2Si2. A broad superconducting (SC) region exists in the T-p...
Quantum Griffiths phase in CePd(1-x)Rh(x) with x ~ 0.8 (2009)
Brando, M., Westerkamp, T., Deppe, M., Gegenwart, P., Geibel, C., Steglich, F.
The magnetic field dependence of the magnetisation ($M$) and the temperature dependence of the ac susceptibility ($\chi' = dM/dH$) of CePd(1-x)Rh(x) single crystals with $0.80 \leq x \leq 0.86$ are...
$H - T$ phase diagram of YbCo$_{2}$Si$_{2}$ with $H // $[100] (2009)
Pedrero, L., Brando, M., Klingner, C., Krellner, C., Geibel, C., Steglich, F.
We report on the first high-resolution dc-magnetisation ($M$) measurements on a single crystal of \ycs. $M$ was measured down to 0.05 K and in fields up to 12 T, with the magnetic field $H$ parallel...
Krellner, C., Klingner, C., Geibel, C., Steglich, F.
We present specific-heat measurements in the vicinity of the antiferromagnetic phase transition on single crystals of the alloy Yb(Rh_{1-x}Co_x)2Si2 for x
Single Crystal 31P NMR Studies of the Frustrated Square Lattice Compound Pb2(VO)(PO4)2 (2009)
Nath, R., Furukawa, Y., Borsa, F., Kaul, E. E., Baenitz, M., Geibel, C., ...
The static and dynamic properties of V^{4+} spins (S = 1/2) in the frustrated square lattice compound Pb2(VO)(PO4)2 were investigated by means of magnetic susceptibility chi and 31P nuclear magnetic...
Rare earth magnetism in CeFeAsO: A single crystal study (2009)
Jesche, A., Krellner, C., De Souza, M., Lang, M., Geibel, C.
Single crystals of CeFeAsO, large enough to study the anisotropy of the magnetic properties, were grown by an optimized Sn-flux technique. The high quality of our single crystals is apparent from the...
Spin correlations and exchange in square lattice frustrated ferromagnets (2009)
Skoulatos, M., Goff, J. P., Geibel, C., Kaul, E. E., Nath, R., Shannon, N., ...
The J1-J2 model on a square lattice exhibits a rich variety of different forms of magnetic order that depend sensitively on the ratio of exchange constants J2/J1. We use bulk magnetometry and...
Magnetic properties of PrPd$_{2}$Si$_{2}$ and PrPt$_{2}$Si$_{2}$ (2009)
Anand, V. K., Hossain, Z., Geibel, C.
We have investigated the two rare-earth intermetallic compounds PrPd$_{2}$Si$_{2}$ and PrPt$_{2}$Si$_{2}$ by means of magnetization, electrical resistivity and heat capacity measurements. While...
Magnetocrystalline anisotropy and antiferromagnetic phase transition in PrRh$_{2}$Si$_{2}$ (2009)
Anand, V K, Hossain, Z, Behr, G, Chen, G, Nicklas, M, Geibel, C
We present magnetic and transport properties of PrRh$_{2}$Si$_{2}$ single crystals which exhibit antiferromagnetic order below T$_{N}$ = 68 K. Well defined anomalies due to magnetic phase transition...
Low temperature properties of the Electron Spin Resonance in YbRh2Si2 (2009)
Sichelschmidt, J., Kambe, T., Fazlishanov, I., Zakharov, D., Wykhoff, J., ...
We present the field and temperature behavior of the narrow Electron Spin Resonance (ESR) response in YbRh2Si2 well below the single ion Kondo temperature. The ESR g factor reflects a Kondo-like...
Magnetic field dependence of the antiferromagnetic phase transitions in Co-doped YbRh_2Si_2 (2009)
Klingner, C., Krellner, C., Geibel, C.
We present first specific-heat data of the alloy Yb(Rh_(1-x)Co_x)_2Si_2 at intermediate Co-contents x=0.18, 0.27, and 0.68. The results already point to a complex magnetic phase diagram as a function...
Why could Electron Spin Resonance be observed in a heavy fermion Kondo lattice? (2009)
Kochelaev, B. I., Belov, S. I., Skvortsova, A. M., Kutuzov, A. S., Sichelschmidt, J., Wykhoff, J., ...
We develop a theoretical basis for understanding the spin relaxation processes in Kondo lattice systems with heavy fermions as experimentally observed by electron spin resonance (ESR). The Kondo...
Electrical resistivity ofYb(Rh1-xCox)2Si2 single crystals at low temperatures (2009)
Friedemann, S., Oeschler, N., Krellner, C., Geibel, C., Steglich, F.
We report low-temperature measurements of the electrical resistivity of Yb(Rh1-xCox)2Si2 single crystals with 0
Magnetization study on the field-induced quantum critical point in YbRh_2Si_2 (2009)
Tokiwa, Y., Geibel, C., Steglich, F., Gegenwart, P.
We study the field-induced quantum critical point (QCP) in YbRh$_2$Si$_2$ by low-temperature magnetization, $M(T)$, and magnetic Gr\"uneisen ratio, $\Gamma_{\rm mag}$, measurements and compare the...
Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition (2009)
Westerkamp, T., Deppe, M., Kuechler, R., Brando, M., Geibel, C., Gegenwart, P., ...
We report on a comprehensive study of CePd$_{1-x}$Rh$_x$ $(0.6 \leq x \leq 0.95)$ poly- and single crystals close to the ferromagnetic instability by means of low-temperature ac susceptibility,...
Heavy fermion behavior in PrRh2B2C: Excitonic mass enhancement (2009)
Anand, V. K., Hossain, Z., Chen, G., Nicklas, M., Geibel, C.
We report magnetic and transport properties of a new quaternary borocarbide PrRh$_{2}$B$_{2}$C, based on magnetisation, resistivity and specific heat studies. This compound forms in...
Carretta, P., Filibian, M., Nath, R., Geibel, C., King, P. J. C.
Zero and longitudinal field $\mu$SR measurements in Pb$_2$VO(PO$_4$)$_2$ and BaCdVO(PO$_4$)$_2$, two prototypes of the frustrated $S=1/2$ square lattice model with competing ferromagnetic and...
Violation of critical universality at the antiferromagnetic phase transition of YbRh2Si2 (2009)
Krellner, C., Hartmann, S., Pikul, A., Oeschler, N., Donath, J. G., Geibel, C., ...
We report on precise low-temperature specific-heat measurements, C(T), of YbRh2Si2 in the vicinity of the antiferromagnetic phase transition on a single crystal of superior quality (RRR 150). We...
Danzenbächer, S., Vyalikh, D. V., Kucherenko, Y., Kade, A., Laubschat, C., Caroca-Canales, N., ...
The mixed-valent compound EuNi2P2 was studied by photoemission. Observed splittings and dispersions of the Eu 4f(6) final state close to energy crossings of the Eu 4f and Ni 3d states are explained...
Magnetic properties of PrRh2Si2: A neutron diffraction study (2009)
Hossain, Z., Rajarajan, A. K., Anand, V. K., Geibel, C., Yusuf, S. M.
Evolution of the Kondo State of YbRh2Si2 Probed by High-Field ESR (2009)
Schaufuß, U., Kataev, V., Zvyagin, A. A., Büchner, B., Sichelschmidt, J., Wykhoff, J., ...
New non-magnetically ordered heavy-fermion system CeTiGe (2009)
Deppe, M., Caroca-Canales, N., Hartmann, S., Oeschler, N., Geibel, C.
Violation of Critcal Universality at the Antiferromagnetic Phase Transition of YbRh2Si2 (2009)
Krellner, C., Hartmann, S., Pikul, A., Oeschler, N., Donath, J. G., Geibel, C., ...
Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition (2009)
Westerkamp, T., Deppe, M., Küchler, R., Brando, M., Geibel, C., Gegenwart, P., ...
Evidence for a reentrant superconducting state in EuFe2As2 under pressure (2009)
Miclea, C.F., Nicklas, M., Jeevan, H.S., Kasinathan, D., Hossain, Z., Rosner, H., ...
Interplay between superconductivity and magnetism in K-doped EuFe2As2 (2008)
Paulose, P. L., Jeevan, H. S., Geibel, C., Hossain, Z.
Superconductivity is found in 50% K-doped EuFe2As2 sample below 33 K. Our results of electrical resistivity, magnetic susceptibility and 57Fe and 151Eu Mossbauer spectroscopy provide clear evidence...
Kutuzov, A. S., Skvortsova, A. M., Belov, S. I., Sichelschmidt, J., Wykhoff, J., Eremin, I., ...
We consider the local properties of the Yb3+ ion in the crystal electric field in the Kondo lattice compounds YbRh2Si2 and YbIr2Si2. On this basis we have calculated the magnetic susceptibility...
Effect of pressure and Ir substitution in YbRh2Si2 (2008)
Macovei, M. E., Nicklas, M., Krellner, C., Geibel, C., Steglich, F.
In this article we present a study of the electrical resistivity of Yb(Rh-xIrx)2Si2, x=0.06, under high pressure and in magnetic field. Ir substitution is expanding the unit cell and leads to a...
Magnetic behaviour of PrPd2B2C (2008)
Anand, V. K., Chaudhuri, A., Dhar, S. K., Geibel, C., Hossain, Z.
We have synthesized a new quaternary borocarbide PrPd$_{2}$B$_{2}$C and measured its magnetization, electrical resistivity and specific heat. The compound crystallizes in the LuNi$_{2}$B$_{2}$C-type...
Tokiwa, Y., Radu, T., Gegenwart, P., Geibel, C., Steglich, F.
The heavy fermion compound YbRh$_2$Si$_2$ is studied by low-temperature magnetization $M(T)$ and specific-heat $C(T)$ measurements at magnetic fields close to the quantum critical point ($H_c=0.06$...
Magnetic order in Pr2Pd3Ge5 and possible heavy fermion behavior in Pr2Rh3Ge5 (2008)
Anand, V. K., Hossain, Z., Geibel, C.
We report our results on two new ternary intermetallic compounds Pr$_{2}$Pd$_{3}$Ge$_{5}$ and Pr$_{2}$Rh$_{3}$Ge$_{5}$ based on magnetic susceptibility, magnetization, specific heat, resistivity and...
Possible re-entrant superconductivity in EuFe2As2 under pressure (2008)
Miclea, C. F., Nicklas, M., Jeevan, H. S., Kasinathan, D., Hossain, Z., Rosner, H., ...
We studied the temperature-pressure phase diagram of EuFe2As2 by measurements of the electrical resistivity. The antiferromagnetic spin-density-wave transition at T_0 associated with the FeAs-layers...
Interplay between 3d and 4f magnetism in CeCoPO (2008)
Krellner, C., Burkhardt, U., Geibel, C.
The ground state properties of CeCoPO, a homologue of the new high temperature superconductors RFePnO1-xFx, were studied by means of susceptibility, specific heat, and resistivity measurements on...
Effect of pressure on the magnetostructural transition in SrFe2As2 (2008)
Kumar, M., Nicklas, M., Jesche, A., Caroca-Canales, N., Schmitt, M., Hanfland, M., ...
We present a systematic pressure study of poly- and single crystalline SrFe2As2 by electrical resistivity and X-ray diffraction measurements. SrFe2As2 exhibits a structural phase transition from a...
Low-temperature thermopower study of YbRh2Si2 (2008)
Hartmann, S., Oeschler, N., Krellner, C., Geibel, C., Steglich, F.
The heavy-fermion compound YbRh2Si2 exhibits an antiferromagnetic (AFM) phase transition at an extremely low temperature of TN = 70 mK. Upon applying a tiny magnetic field of Bc = 60 mT the AFM...
High-Temperature Superconductivity in Eu0.5K0.5Fe2As2 (2008)
Jeevan, H. S., Hossain, Z., Kasinathan, Deepa, Rosner, Helge, Geibel, C., Gegenwart, P.
Subsequent to our recent report of SDW type transition at 190 K and antiferromagnetic order below 20 K in EuFe2As2, we have studied the effect of K-doping on the SDW transition at high temperature...
Kaneko, K., Hoser, A., Caroca-Canales, N., Jesche, A., Krellner, C., Stockert, O., ...
Neutron powder diffraction experiments were carried out on polycrystalline SrFe$_2$As$_2$ in order to determine the magnetic structure and its relationship with the crystallographic one. Below...
Superconductivity in SrFe_(2-x)Co_xAs_2: Internal Doping of the Iron Arsenide Layers (2008)
Leithe-Jasper, A., Schnelle, W., Geibel, C., Rosner, H.
In the electron doped compounds SrFe_(2-x)Co_xAs_2 superconductivity with T_c up to 20 K is observed for 0.2 < x < 0.4. Results of structure determination, magnetic susceptibility, electrical...
Strong coupling between magnetic and structural order parameters in SrFe2As2 (2008)
Jesche, A., Caroca-Canales, N., Rosner, H., Borrmann, H., Ormeci, A., Kasinathan, D., ...
X-ray and Neutron diffraction as well as muon spin relaxation and M\"ossbauer experiments performed on SrFe$_2$As$_2$ polycrystalls confirm a sharp first order transition at $T_0 = 205$,K...
Jeevan, H. S., Hossain, Z., Kasinathan, Deepa, Rosner, H., Geibel, C., Gegenwart, P.
We have grown single crystals of EuFe2As2 and investigated its electrical transport and thermodynamic properties. Electrical resistivity and specific heat measurements clearly establish the intrinsic...
Magnetic and structural transitions in layered FeAs systems: AFe2As2 versus RFeAsO compounds (2008)
Krellner, C., Caroca-Canales, N., Jesche, A., Rosner, H., Ormeci, A., Geibel, C.
Resistivity, specific heat and magnetic susceptibility measurements performed on SrFe2As2 samples evidence a behavior very similar to that observed in LaFeAsO and BaFe2As2 with the difference that...
Nath, R., Tsirlin, A. A., Kaul, E. E., Baenitz, M., Büttgen, N., Geibel, C., ...
We present a detailed investigation of the magnetic properties of complex vanadium phosphates M(VO)2(PO4)2 (M = Ca, Sr) by means of magnetization, specific heat, 31P NMR measurements, and band...
Evolution of the Kondo state of YbRh2Si2 probed by high field ESR (2008)
Schaufuß, U., Kataev, V., Zvyagin, A. A., Büchner, B., Sichelschmidt, J., Wykhoff, J., ...
An electron spin resonance (ESR) study of the heavy fermion compound YbRh2Si2 for fields up to ~ 8 T reveals a strongly anisotropic signal below the single ion Kondo temperature T_K ~ 25 K. A...
CeFePO: A Heavy Fermion Metal with Ferromagnetic Correlations (2008)
Brüning, E. M., Krellner, C., Baenitz, M., Jesche, A., Steglich, F., Geibel, C.
The ground state properties of CeFePO, a homologue of the new high temperature superconductors RFePnO(1-x)Fx, were studied by means of susceptibility, specific heat, resistivity, and NMR measurements...
Nath, R., Kasinathan, Deepa, Rosner, H., Baenitz, M., Geibel, C.
The electronic and magnetic properties of K$_{2}$CuP$_{2}$O$_{7}$ were investigated by means of susceptibility, specific heat and $^{31}$P nuclear magnetic resonance (NMR) measurements and by LDA...
Hall effect measurements on YbRh2Si2 in the light of electronic structure calculations (2008)
Friedemann, S., Oeschler, N., Wirth, S., Krellner, C., Geibel, C., Steglich, F., ...
Comprehensive temperature-dependent Hall effect measurements on YbRh2Si2, YbIr2Si2 and LuRh2Si2 single crystals are analyzed using theoretical results based on electronic band structure calculations....
Nath, R., Tsirlin, A. A., Rosner, H., Geibel, C.
We report magnetization and specific heat measurements on polycrystalline samples of BaCdVO(PO_4)_2 and show that this compound is a S=1/2 frustrated square lattice with ferromagnetic...
Photoemission Insight into Heavy-Fermion Behavior in YbRh2Si2 (2008)
Vyalikh, D. V., Danzenbächer, S., Yaresko, A. N., Holder, M., Kucherenko, Y., Laubschat, C., ...
Band-structure and anomalous contributions to the Hall effect of YbRh2Si2 (2008)
Friedemann, S., Oeschler, N., Krellner, C., Geibel, C., Wirth, S., Steglich, F., ...
Unconventional quantum criticality in YbRh2Si2 (2008)
Gegenwart, P., Westerkamp, T., Krellner, C., Brando, M., Tokiwa, Y., Geibel, C., ...
Hall effect of YbIr2Si2 (2008)
Kriegisch, M., Custers, J., Geibel, C., Hilscher, G., Krellner, C., Müller, M., ...
Electronic and magnetic properties of K2CuP2O7: A model S = ½ Heisenberg chain system (2008)
Nath, R., Kasinathan, D., Rosner, H., Baenitz, M., Geibel, C.
Low-temperature specific heat of YbRh2Si2 (2008)
Oeschler, N., Hartmann, S., Pikul, A. P., Krellner, C., Geibel, C., Steglich, F.
Optical properties of YbRh2Si2 and YbIr2Si2: A comparison (2008)
Sichelschmidt, J., Kimura, S., Krellner, C., Geibel, C., Steglich, F.
Experimental evidence for unconventional BCS states in heavy-fermion metals (2008)
Steglich, F., Geibel, C., Grosche, F. M., Loewenhaupt, M., Stockert, O., Wirth, S., ...
Low-temperature magnetic susceptibility of Yb(Rh1-xMx)2Si2(M = Ir, Co) single crystals (2008)
Westerkamp, T., Gegenwart, P., Krellner, C., Geibel, C., Steglich, F.
Anisotropic magnetic behavior in EuIr2Ge2 single crystal (2008)
Prasad, A., Anand, V. K., Hossain, Z., Paulose, P. L., Geibel, C.
CeFePO: A Heavy Fermion Metal with Ferromagnetic Correlations (2008)
Brüning, E. M., Krellner, C., Baenitz, M., Jesche, A., Steglich, F., Geibel, C.
High-temperature superconductivity in Eu0.5K0.5Fe2As2 (2008)
Jeevan, H. S., Hossain, Z., Kasinathan, D., Rosner, H., Geibel, C., Gegenwart, P.
Magnetic and structural transitions in layered iron arsenide systems: AFe2As2 versus RFeAsO (2008)
Krellner, C., Caroca-Canales, N., Jesche, A., Rosner, H., Ormeci, A., Geibel, C.
Ferromagnetism in CePdi1-xRhx single crystals (2008)
Hartmann, S., Deppe, M., Oeschler, N., Caroca-Canales, N., Sereni, J., Geibel, C.
Antiferromagnetism in Fe-doped PrRh2Si2: a Mössbauer study (2008)
Anand, V. K., Pandey, B., Hossain, Z., Verma, H. C., Geibel, C.
Strong coupling between magnetic and structural order parameters in SrFe2As2 (2008)
Jesche, A., Caroca-Canales, N., Rosner, H., Borrmann, H., Ormeci, A., Kasinathan, D., ...
Effect of pressure on the magnetostructural transition in SrFe2As2 (2008)
Kumar, M., Nicklas, M., Jesche, A., Caroca-Canales, N., Schmitt, M., Hanfland, M., ...
The effect of pressure and Ir substitution in YbRh2Si2 (2008)
Macovei, M. E., Nicklas, M., Krellner, C., Geibel, C., Steglich, F.
High Pressure NQR Measurement in CeCu2Si2 up to Sudden Disappearance of Superconductivity (2008)
Fujiwara, K., Hata, Y., Kobayashi, K., Miyoshi, K., Takeuchi, J., Shimaoka, Y., ...
Photoemission insight into heavy-fermion behavior in YbRh2Si2 (2008)
Vyalikh, D. V., Danzenbächer, S., Yaresko, A. N., Holder, M., Kucherenko, Y., Laubschat, C., ...
J. Diehl, S. Klimm, H. Davideit, E. Baur, S. Horn, U. Klinger, ...
We have performed magnetoresistance and Hall effect measurements on ternary Yb-based heavy fermion compounds: YbCu 4 X (X=Ag, Au and Pd) and YbNiAl
D. Ehm, F. Reinert, S. Schmidt, G. Nicolay, J. Kroha, O. Trovarelli, ...
By use of high-resolution photoelectron spectroscopy we investigate the 4f spectral function of the heavy fermion compound CeRu 2 Si 2 in the energy range close to the Fermi level. A normalization...
Single crystal growth and anisotropy of CeRuPO (2007)
We report on the single crystal growth of the ferromagnetic Kondo lattice system CeRuPO using a Sn flux method. Magnetic susceptibility and electrical resistivity measurements indicate strong...
ESR of YbRh2Si2 and 174YbRh2Si2 : local and itinerant properties (2007)
Wykhoff, J., Sichelschmidt, J., Lapertot, G., Knebel, G., Flouquet, J., Fazlishanov, I. I., ...
Below the Kondo temperature the heavy Fermion compound YbRh$_{2}$Si$_{2}$ shows a well defined Electron Spin Resonance (ESR) with local Yb$^{3+}$ properties. We report a detailed analysis of the ESR...
CeRuPO: A rare example of a Ferromagnetic Kondo lattice (2007)
Krellner, C., Kini, N. S., Bruning, E. M., Koch, K., Rosner, H., Nicklas, M., ...
We have determined the physical ground state properties of the compounds CeRuPO and CeOsPO by means of magnetic susceptibility chi(T), specific heat C(T), electrical resistivity rho(T), and...
Structure and transport in multi-orbital Kondo systems (2007)
Kroha, J., Kirchner, S., Sellier, G., W"olfle, P., Ehm, D., Reinert, F., ...
We consider Kondo impurity systems with multiple local orbitals, such as rare earth ions in a metallic host or multi--level quantum dots coupled to metallic leads. It is shown that the multiplet...
Ehm, D., H"ufner, S., Reinert, F., Kroha, J., W"olfle, P., Stockert, O., ...
We present a high-resolution photoemission study on the strongly correlated Ce-compounds CeCu_6, CeCu_2Si_2, CeRu_2Si_2, CeNi_2Ge_2, and CeSi_2. Using a normalization procedure based on a division by...
Electron spin resonance of YbIr2Si2 below the Kondo temperature (2007)
Sichelschmidt, J., Wykhoff, J., Krug Von Nidda, H.-A., Fazlishanov, I. I., Hossain, Z., Krellner, C., ...
Multiple Energy Scales at a Quantum Critical Point (2007)
Gegenwart, P., Westerkamp, T., Krellner, C., Tokiwa, Y., Paschen, S., Geibel, C., ...
Ferromagnetic quantum criticality in the alloy CePd1-xRhx (2007)
Sereni, J. G., Westerkamp, T., Küchler, R., Caroca-Canales, N., Gegenwart, P., Geibel, C.
Magnetic structures and crystal field in the heavy electron materials YbAgGe and YbPtIn (2007)
Bonville, P., Rams, M., Królas, K., Canfield, P. C., Trovarelli, O., ...
Spin dynamics of YbRh2Si2 observed by electron spin resonance (2007)
Sichelschmidt, J., Wykhoff, J., Krugg Von Nidda, H.-A., Ferstl, J., Geibel, C., Steglich, F.
Magnetic and transport properties of Pr2Ni3Ge5 (2007)
Anand, V. K., Nandy, A. K., Dhar, S. K., Geibel, C., Hossain, Z.
Magnetic behavior of PrPd2B2C (2007)
Anand, V. K., Chaudhuri, A., Dhar, S. K., Geibel, C., Hossain, Z.
Ehm, D., Hüfner, S., Reinert, F., Kroha, J., Wölfle, P., Stockert, O., ...
Spatial separation of antiferromagnetism and superconductivity in CeCu2Si2 (2007)
Faulhaber, E., Stockert, O., Schmalzl, K., Jeevan, H. S., Deppe, M., Geibel, C., ...
YbFe2Ge2 heavy fermion system under pressure (2007)
Larrea J, J., Fontes, M., Baggio-Saitovitch, E., Abd-Elmeguid, M. M., Plessel, J., Ferstl, J., ...
Hybridization of 4f states in heavy-fermion compounds YbRh2Si2 and YbIr2Si2 (2007)
Molodtsov, S. L., Danzenbächer, S., Kucherenko, Y., Laubschat, C., Vyalikh, D. V., Hossain, Z., ...
Spin correlations in the frustrated square lattice Pb2VO(PO4)2 (2007)
Skoulatos, M., Goff, J. P., Shannon, N., Kaul, E. E., Geibel, C., Murani, A. P., ...
Magnetocrystalline anisotropy and antiferromagnetic phase transition in PrRh2Si2 (2007)
Anand, V. K., Hossain, Z., Behr, G., Chen, G., Nicklas, M., Geibel, C.
Metamagnetic-like transition in the cubic heavy fermion compound CeIn3-xSnx (2007)
Arndt, J., Caroca-Canales, N., Dörr, M., Geibel, C., Stockert, O., Loewenhaupt, M.
CeRuPO: A rare example of a ferromagnetic Kondo lattice (2007)
Krellner, C., Kini, N. S., Brüning, E. M., Koch, K., Rosner, H., Nicklas, M., ...
Low-energy spin fluctuations in the non-Fermi-liquid compound YbRh2Si2 (2007)
Stockert, O., Koza, M. M., Ferstl, J., Geibel, C., Steglich, F.
Electron spin resonance in YbRh2Si2: The role of the residual linewidth (2007)
Wykhoff, J., Sichelschmidt, J., Ferstl, J., Krellner, C., Geibel, C., Steglich, F., ...
On the local and itinerant properties of the ESR in YbRh2Si2 (2007)
Wykhoff, J., Sichelschmidt, J., Lapertot, G., Knebel, G., Flouquet, J., Fazlishanov, I. I., ...
Ehm, D., Hüfner, S., Reinert, F., Kroha, J., Wölfle, P., Stockert, O., ...
Physical Review B, 76(2007) S.045117/1-4
Quantum phase transition in the heavy-fermion compound YbIr$_2$Si$_2$ (2006)
Yuan, H. Q., Nicklas, M., Hossain, Z., Geibel, C., Steglich, F.
We investigate the pressure-temperature phase diagram of YbIr$_2$Si$_2$ by measuring the electrical resistivity $\rho(T)$. In contrast to the widely investigated YbRh$_2$Si$_2$, YbIr$_2$Si$_2$ is a...
Spin dynamics of $Yb Rh_2 Si_2$ observed by Electron Spin Resonance (2006)
Sichelschmidt, J., Wykhoff, J., Ferstl, J., Geibel, C., Steglich, F.
Below the Kondo temperature $T_{\rm K}$ electron spin resonance (ESR) usually is not observable from the Kondo-ion itself because the characteristic spin fluctuation energy results in a huge width of...
Kimura, S., Sichelschmidt, J., Ferstl, J., Krellner, C., Geibel, C., Steglich, F.
We report far-infrared optical properties of YbRh$_{2}$Si$_{2}$ for photon energies down to 2 meV and temperatures 0.4 -- 300 K. In the coherent heavy quasiparticle state, a linear dependence of the...
Quantum criticality in the cubic heavy-fermion system CeIn_{3-x}Sn_x (2006)
Kuechler, R., Gegenwart, P., Custers, J., Stockert, O., Caroca-Canales, N., Geibel, C., ...
We report a comprehensive study of CeIn$_{3-x}$Sn$_x$ $(0.55 \leq x \leq 0.8)$ single crystals close to the antiferromagnetic (AF) quantum critical point (QCP) at $x_c\approx 0.67$ by means of the...
Multiple energy scales at a quantum critical point (2006)
Gegenwart, P., Westerkamp, T., Krellner, C., Tokiwa, Y., Paschen, S., Geibel, C., ...
We report thermodynamic measurements in a magnetic-field-driven quantum critical point of a heavy fermion metal, YbRh$_2$Si$_2$. The data provide evidence for an energy scale in the equilibrium...
Quantum Criticality in doped CePd_1-xRh_x Ferromagnet (2006)
Sereni, J. G., Westerkamp, T., Kuechler, R., Caroca-Canales, N., Gegenwart, P., Geibel, C.
CePd_1-xRh_x alloys exhibit a continuous evolution from ferromagnetism (T_C= 6.5 K) at x = 0 to a mixed valence (MV) state at x = 1. We have performed a detailed investigation on the suppression of...
Non-Fermi Liquid States in the Pressurized CeCu2(Si1-xGex)2 Systems: Two Critical Points (2006)
Yuan,H. Q., Grosche,F. M., Deppe,M., Sparn,G., Geibel,C., Steglich,F.
Non-Fermi Liquid States in the Pressurized CeCu2(Si1-xGex)2 System: Two Critical Points (2006)
Yuan, H. Q., Grosche, F. M., Deppe, M., Sparn, G., Geibel, C., Steglich, F.
Superconducting phases and quantum criticality in CeCu2Si2 (2006)
Sparn, G., Stockert, O., Grosche, F. M., Yuan, H. Q., Faulhaber, E., Geibel, C., ...
Quantum Criticality in the Cubic Heavy-Fermion System CeIn3-xSnx (2006)
Küchler, R., Gegenwart, P., Custers, J., Stockert, O., Caroca-Canales, N., Geibel, C., ...
Low-temperature high-field magnetization of YbRh2Si2 and YbIr2Si2 under hydrostatic pressure (2006)
Tokiwa, Y., Gegenwart, P., Hossain, Z., Ferstl, J., Sparn, G., Geibel, C., ...
Low-temperature electrical resistivity of Yb1-xLaxRh2Si2 (2006)
Weickert, F., Gegenwart, P., Ferstl, J., Geibel, C., Steglich, F.
Crystalline electric field excitations of the non-Fermi-liquid YbRh2Si2 (2006)
Stockert, O., Koza, M. M., Ferstl, J., Murani, A. P., Geibel, C., Steglich, F.
Heat capacity of CeCu2Si2 under hydrostatic pressure (2006)
Lengyel, E., Sparn, G., Nicklas, M., Jeevan, H. S., Geibel, C., Steglich, F.
Low-temperature properties of the heavy fermion system YbIr2Si2 (2006)
Hossain, Z., Geibel, C., Radu, T., Tokiwa, Y., Weickert, F., Krellner, C., ...
Magnetisation dynamics of YbIr2Si2 (2006)
Hiess, A., Stockert, O., Koza, M. M., Hoissain, Z., Geibel, C.
Thermal transport properties of the heavy-fermion compound YbRh2(Si1-xGex)2 (2006)
Hartmann, S., Köhler, U., Oeschler, N., Paschen, S., Krellner, C., Geibel, C., ...
Magnetic phases in CeCu2(Si1-xGex)2 near the tetracritical point (2006)
Faulhaber, E., Stockert, O., Grenier, B., Ouladdiaf, B., Deppe, M., Geibel, C., ...
Magnetic order and superconductivity in single-crystalline CeCu2Si2 (2006)
Stockert, O., Andreica, D., Amato, A., Jeevan, H. S., Geibel, C., Steglich, F.
Thermal expansion and Grüneisen ratio near quantum critical points (2006)
Küchler, R., Gegenwart, P., Weickert, F., Oeschler, N., Cichorek, T., Nicklas, M., ...
Transport and thermal properties of weakly ferromagnetic Sr2IrO4 (2006)
Kini, N. S., Strydom, A. M., Jeevan, H. S., Geibel, C., Ramakrishnan, S.
High-field phase diagram of the heavy-fermion metal YbRh2Si2 (2006)
Gegenwart, P., Tokiwa, Y., Westerkamp, T., Weickert, F., Custers, J., Ferstl, J., ...
Optical observation of non-Fermi-liquid behavior in the heavy fermion state of YbRh2Si2 (2006)
Kimura, S., Sichelschmidt, J., Ferstl, J., Krellner, C., Geibel, C., Steglich, F.
Phase diagram of the heavy fermion system YbFe2Ge2 under pressure (2006)
Larrea, J., Fontes, M. B., Baggio-Saitovitch, E. M., Plessel, J., Abd-Elmeguid, M. M., Ferstl, J., ...
Non-Fermi-liquid behaviour close to the disappearance of ferromagnetism in CePd1-xRhx (2006)
Pikul, A. P., Caroca-Canales, N., Deppe, M., Gegenwart, P., Sereni, J. G., Geibel, C., ...
Quantum phase transition in the heavy-fermion compound YbIr2Si2 (2006)
Yuan, H. Q., Nicklas, M., Hossain, Z., Geibel, C., Steglich, F.
Peculiarities of the antiferromagnetism in CeCu2Si2 (2006)
Stockert, O., Faulhaber, E., Schmalzl, K., Schmidt, W., Jeevan, H. S., Deppe, M., ...
Magnetic properties close to the quantum critical point in YbRh2Si2 (2006)
Gegenwart, P., Tokiwa, Y., Custers, J., Geibel, C., Steglich, F.
Jeevan, H. S., Hossain, Z., Geibel, C.
e have investigated the magnetic properties of YbRu$_{2}$Ge$_{2}$ by means of magnetic susceptibility $\chi$(T), specific heat C(T) and electrical resistivity $\rho$(T) measurements performed on flux...
Yuan, H. Q., Grosche, F. M., Deppe, M., Sparn, G., Geibel, C., Steglich, F.
In the archetypal strongly correlated electron superconductor CeCu$_2$Si$_2$ and its Ge-substituted alloys CeCu$_2$(Si$_{1-x}$Ge$_{x}$)$_2$ two quantum phase transitions -- one magnetic and one of so...
Anisotropy, disorder, and superconductivity in CeCu2Si2 under high pressure (2005)
Holmes, A. T., Jaccard, D., Jeevan, H. S., Geibel, C., Ishikawa, M.
Resistivity measurements were carried out up to 8 GPa on single crystal and polycrystalline samples of CeCu2Si2 from differing sources in the homogeneity range. The anisotropic response to current...
Field-induced suppression of the heavy-fermion state in YbRh_2Si_2 (2005)
Tokiwa, Y., Gegenwart, P., Radu, T., Ferstl, J., Sparn, G., Geibel, C., ...
We report DC magnetization measurements on YbRh_2Si_2 at temperatures down to 0.04K, magnetic fields B
Magnetic phase diagram of CeCu2(Si1-xGex)2 measured with low-temperature thermal expansion (2005)
Oeschler,N., Deppe,M., Lengyel,E., Borth,R., Gegenwart,P., Sparn,G., ...
Coexistence of magnetic order and charge density wave in a Kondo lattice: Yb5Ir4Si10 (2005)
Hossain,Z., Schmidt,M., Schnelle,W., Jeevan,H. S., Geibel,C., Ramakrishnan,S., ...
Ferromagnetic quantum critical fluctuations in YbRh_2(Si_{0.95}Ge_{0.05})_2 (2005)
Gegenwart, P., Custers, J., Tokiwa, Y., Geibel, C., Steglich, F.
The bulk magnetic susceptibility $\chi(T,B)$ of YbRh$_2$(Si$_{0.95}$Ge$_{0.05}$)$_2$ has been investigated %by ac-and dc-magnetometry at low temperatures and close to the field-induced quantum...
The nonstoichiometric ternary cerium iron sulfide Ce2Fe1.82S5 (2005)
Harms,W., Mills,A. M., Söhnel,T., Laubschat,C., Wagner,F. E., Geibel,C., ...
New lead vanadium phosphate with langbeinite-type structure: Pb1.5V2(PO4)3 (2005)
Shpanchenko,R. V., Lapshina,O. A., Antipov,E. V., Hadermann,J., Kaul,E. E., Geibel,C.
Pressure dependence of the low-temperature magnetization of YbRh2Si2 (2005)
Tokiwa,Y., Gegenwart,P., Sparn,G., Ferstl,J., Geibel,C., Steglich,F.
Transport properties of CeCu2(Si0.9Ge0.1)2 under hydrostatic pressure (2005)
Nakanishi,T., Sparn,G., Jeevan,H. S., Deppe,M., Geibel,C., Steglich,F.
Anomalous Hall effect in YbRh2Si2 (2005)
Paschen,S., Lühmann,T., Wirth,S., Trovarelli,O., Geibel,C., Steglich,F.
Specific heat of CeIn3-xSnx single crystals in the vicinity of the quantum critical point (2005)
Rus,T., Wilhelm,H., Stockert,O., Lühmann,T., Caroca-Canales,N., Sereni,J. G., ...
Scaling of the magnetic entropy and magnetization in YbRh2(Si0.95Ge0.05)2 (2005)
Gegenwart,P., Tokiwa,Y., Neumaier,K., Geibel,C., Steglich,F.
Tuning YbRh2Si2 to a non-magnetic state by La-doping (2005)
Ferstl,J., Geibel,C., Weickert,F., Gegenwart,P., Radu,T., Lühmann,T., ...
Magnetic field dependence of the magnetic order in A-type CeCu2Si2 (2005)
Faulhaber,E., Stockert,O., Jeevan,H. S., Prokes,K., Deppe,M., Geibel,C., ...
Electrical resistivity of YbRh2Si2 at high pressure (2005)
Dionicio,G., Wilhelm,H., Sparn,G., Ferstl,J., Geibel,C., Steglich,F.
Does antiferromagnetism survive in the superconducting phase of CeCu2Si2? (2005)
Stockert,O., Faulhauber,E., Prokeš,K., Stüßer,N., Gerischer,S., Smeibidl,P., ...
Antiferromagnetism in CeCu2(Si1-xGex)2: nature of the A phase (2005)
Stockert,O., Deppe,M., Faulhaber,E., Jeevan,H. S., Schneider,R., Stüßer,N., ...
Anisotropy, disorder, and superconductivity in CeCu2Si2 under high pressure (2005)
Holmes,A. T., Jaccard,D., Jeevan,H. S., Geibel,C., Ishikawa,M.
Yb-based heavy-fermion metal situated close to a quantum critical point (2005)
Hossain,Z., Geibel,C., Weickert,F., Radu,T., Tokiwa,Y., Jeevan,H., ...
Field-Induced Suppression of the Heavy-Fermion State in YbRh2Si2 (2005)
Tokiwa,Y., Gegenwart,P., Radu,T., Ferstl,J., Sparn,G., Geibel,C., ...
Ferromagnetic Quantum Critical Fluctuations in YbRh2(Si0.95Ge0.05)2 (2005)
Gegenwart, P., Custers, J., Tokiwa, Y., Geibel, C., Steglich, F.
The nonstoichiometric ternary cerium iron sulfide Ce2Fe1.82S5 (2005)
Harms, W., Mills, A. M., Söhnel, T., Laubschat, C., Wagner, F. E., Geibel, C., ...
Coexistence of magnetic order and charge density wave in a Kondo lattice: Yb5Ir4Si10 (2005)
Hossain, Z., Schmidt, M., Schnelle, W., Jeevan, H. S., Geibel, C., Ramakrishnan, S., ...
Magnetic phase diagram of CeCu2(Si1-xGex)2 measured with low-temperature thermal expansion (2005)
Oeschler, N., Deppe, M., Lengyel, E., Borth, R., Gegenwart, P., Sparn, G., ...
New lead vanadium phosphate with langbeinite-type structure: Pb1.5V2(PO4)3 (2005)
Shpanchenko, R. V., Lapshina, O. A., Antipov, E. V., Hadermann, J., Kaul, E. E., Geibel, C.
Pressure dependence of the low-temperature magnetization of YbRh2Si2 (2005)
Tokiwa, Y., Gegenwart, P., Sparn, G., Ferstl, J., Geibel, C., Steglich, F.
Transport properties of CeCu2(Si0.9Ge0.1)2 under hydrostatic pressure (2005)
Nakanishi, T., Sparn, G., Jeevan, H. S., Deppe, M., Geibel, C., Steglich, F.
Anomalous Hall effect in YbRh2Si2 (2005)
Paschen, S., Lühmann, T., Wirth, S., Trovarelli, O., Geibel, C., Steglich, F.
Specific heat of CeIn3-xSnx single crystals in the vicinity of the quantum critical point (2005)
Rus, T., Wilhelm, H., Stockert, O., Lühmann, T., Caroca-Canales, N., Sereni, J. G., ...
Scaling of the magnetic entropy and magnetization in YbRh2(Si0.95Ge0.05)2 (2005)
Gegenwart, P., Tokiwa, Y., Neumaier, K., Geibel, C., Steglich, F.
Tuning YbRh2Si2 to a non-magnetic state by La-doping (2005)
Ferstl, J., Geibel, C., Weickert, F., Gegenwart, P., Radu, T., Lühmann, T., ...
Magnetic field dependence of the magnetic order in A-type CeCu2Si2 (2005)
Faulhaber, E., Stockert, O., Jeevan, H. S., Prokes, K., Deppe, M., Geibel, C., ...
Electrical resistivity of YbRh2Si2 at high pressure (2005)
Dionicio, G., Wilhelm, H., Sparn, G., Ferstl, J., Geibel, C., Steglich, F.
Does antiferromagnetism survive in the superconducting phase of CeCu2Si2? (2005)
Stockert, O., Faulhauber, E., Prokeš, K., Stüßer, N., Gerischer, S., Smeibidl, P., ...
Antiferromagnetism in CeCu2(Si1-xGex)2: nature of the A phase (2005)
Stockert, O., Deppe, M., Faulhaber, E., Jeevan, H. S., Schneider, R., Stüßer, N., ...
Anisotropy, disorder, and superconductivity in CeCu2Si2 under high pressure (2005)
Holmes, A. T., Jaccard, D., Jeevan, H. S., Geibel, C., Ishikawa, M.
Yb-based heavy-fermion metal situated close to a quantum critical point (2005)
Hossain, Z., Geibel, C., Weickert, F., Radu, T., Tokiwa, Y., Jeevan, H., ...
Field-Induced Suppression of the Heavy-Fermion State in YbRh2Si2 (2005)
Tokiwa, Y., Gegenwart, P., Radu, T., Ferstl, J., Sparn, G., Geibel, C., ...
Hall-effect evolution across a heavy-fermion quantum critical point (2004)
Paschen,S., Lühmann,T., Wirth,S., Gegenwart,P., Trovarelli,O., Geibel,C., ...
Hall-effect evolution across a heavy-fermion quantum critical point (2004)
Paschen, S., Luhmann, T., Wirth, S., Gegenwart, P., Trovarelli, O., Geibel, C., ...
A quantum critical point (QCP) develops in a material at absolute zero when a new form of order smoothly emerges in its ground state. QCPs are of great current interest because of their singular...
Effect of impurity scattering on the superconductivity of CeCu2Si2 (2004)
Yuan,H. Q., Grosche,F. M., Deppe,M., Geibel,C., Sparn,G., Steglich,F.
Synthesis, Structure, and Properties of New Perovskite PbVO3 (2004)
Shpanchenko,R. V., Chernaya,V. V., Tsirlin,A. A., Chizhov,P. S., Sklovsky,D. E., Antipov,E. V., ...
Crystal structure and properties of the new vanadyl(IV)phosphates Na2MVO(PO4)2, M=Ca and Sr (2004)
Chernaya,V. V., Tsirlin,A. A., Shpanchenko,R. V., Antipov,E. V., Gippius,A. A., Morozova,E. N., ...
Scaling of the magnetic entropy and magnetization in YbRh_2(Si_{0.95}Ge_{0.05})_2 (2004)
Gegenwart, P., Tokiwa, Y., Neumaier, K., Geibel, C., Steglich, F.
The magnetic entropy of YbRh_2(Si_{0.95}Ge_{0.05})_2 is derived from low-temperature ($T\geq 18$ mK) specific heat measurements. Upon field-tuning the system to its antiferromagnetic quantum critical...
Study of the magnetic order in CeCU2(Si1-xGex)2: evidence for a critical point at x=0.25 (2004)
Deppe,M., Borth,R., Geibel,C., Hinze,P., Oeschler,N., Stockert,O., ...
Magnetic structure of the heavy-fermion alloy CeCu2(Si0.5Ge0.5)2 (2004)
Faulhaber,E., Stockert,O., Rheinstädter,M., Deppe,M., Geibel,C., Loewenhaupt,M., ...
Low-dimensional V-based complex oxides: an NMR study (2004)
Gippius,A. A., Morozova,E. N., Spanchenko,R. V., Kaul,E., Geibel,C., Rabis,A., ...
Electron spin resonance of the low-dimensional spin-system Sr2V3O9 (2004)
Ivanshin,V. A., Yushankhai,V., Sichelschmidt,J., Zakharov,D. V., Kaul,E. E., Geibel,C.
Optical conductivity of a non-Fermi-liquid material YbRh2Si2 (2004)
Kimura,S., Nishi,T., Sichelschmidt,J., Voevodin,V., Ferstl,J., Geibel,C., ...
Low-temperature thermal expansion and magnetostriction of YbRh2(Si1-xGex)2 (x=0 and 0.05) (2004)
Küchler,R., Weickert,F., Gegenwart,P., Oeschler,N., Ferstl,J., Geibel,C., ...
Electron spin resonance of the Kondo ion in YbRh2Si2 (2004)
Sichelschmidt,J., Ivanshin,V. A., Ferstl,J., Geibel,C., Steglich,F.
Nature of the A Phase in CeCu2Si2 (2004)
Stockert,O., Faulhaber,E., Zwicknagl,G., Stüßer,N., Jeevan,H. S., Deppe,M., ...
Low temperature magnetic phase diagram of the cubic non-Fermi liquid system Celn3-xSnx (2004)
Pedrazzini,P., Gómez Berisso,M., Caroca-Canales,N., Deppe,M., Geibel,C., Sereni,J. G.
Evolution of the Ground State in the ternary system CeT2Si2 (T=Cu, Rh and Pd) (2004)
Pedrazzini,P., Gómez Berisso,M., Trovarelli,O., Sereni,J. G., Geibel,C.
Crystal Structure, Polymorphism, and Properties of the New Vanadyl Phosphate Na4VO(PO4)2 (2004)
Panin,R. V., Shpanchenko,R. V., Mironov,A. V., Velikodny,Y. A., Antipov,E. V., Hadermann,J., ...
Antiferromagnetism, valence fluctuation, and heavy-fermion behavior in EuCu2(Ge1-xSix)2 (2004)
Hossain,Z., Geibel,C., Senthilkumaran,N., Deppe,M., Baenitz,M., Schiller,F., ...
Suppression of the Kondo state in YbRh2Si2 by large magnetic fields (2004)
Tokiwa,Y., Gegenwart,P., Weickert,F., Küchler,R., Custers,J., Ferstl,J., ...
Magnetic field dependence of the A-phase in CeCu2Si2 (2004)
Faulhaber,E., Stockert,O., Prokes,K., Stüßer,N., Jeevan,H. S., Geibel,C., ...
Crystal structure and properties of the new vanadyl(IV)phosphates Na2MVO(PO4)2, M=Ca and Sr (2004)
Chernaya, V. V., Tsirlin, A. A., Shpanchenko, R. V., Antipov, E. V., Gippius, A. A., Morozova, E. N., ...
Study of the magnetic order in CeCU2(Si1-xGex)2: evidence for a critical point at x=0.25 (2004)
Deppe, M., Borth, R., Geibel, C., Hinze, P., Oeschler, N., Stockert, O., ...
Magnetic structure of the heavy-fermion alloy CeCu2(Si0.5Ge0.5)2 (2004)
Faulhaber, E., Stockert, O., Rheinstädter, M., Deppe, M., Geibel, C., Loewenhaupt, M., ...
Low-dimensional V-based complex oxides: an NMR study (2004)
Gippius, A. A., Morozova, E. N., Spanchenko, R. V., Kaul, E., Geibel, C., Rabis, A., ...
Antiferromagnetism, valence fluctuation, and heavy-fermion behavior in EuCu2(Ge1-xSix)2 (2004)
Hossain, Z., Geibel, C., Senthilkumaran, N., Deppe, M., Baenitz, M., Schiller, F., ...
Electron spin resonance of the low-dimensional spin-system Sr2V3O9 (2004)
Ivanshin, V. A., Yushankhai, V., Sichelschmidt, J., Zakharov, D. V., Kaul, E. E., Geibel, C.
Optical conductivity of a non-Fermi-liquid material YbRh2Si2 (2004)
Kimura, S., Nishi, T., Sichelschmidt, J., Voevodin, V., Ferstl, J., Geibel, C., ...
Low-temperature thermal expansion and magnetostriction of YbRh2(Si1-xGex)2 (x=0 and 0.05) (2004)
Küchler, R., Weickert, F., Gegenwart, P., Oeschler, N., Ferstl, J., Geibel, C., ...
Crystal Structure, Polymorphism, and Properties of the New Vanadyl Phosphate Na4VO(PO4)2 (2004)
Panin, R. V., Shpanchenko, R. V., Mironov, A. V., Velikodny, Y. A., Antipov, E. V., Hadermann, J., ...
Hall-effect evolution across a heavy-fermion quantum critical point (2004)
Paschen, S., Lühmann, T., Wirth, S., Gegenwart, P., Trovarelli, O., Geibel, C., ...
Low temperature magnetic phase diagram of the cubic non-Fermi liquid system Celn3-xSnx (2004)
Pedrazzini, P., Gómez Berisso, M., Caroca-Canales, N., Deppe, M., Geibel, C., Sereni, J. G.
Evolution of the Ground State in the ternary system CeT2Si2 (T=Cu, Rh and Pd) (2004)
Pedrazzini, P., Gómez Berisso, M., Trovarelli, O., Sereni, J. G., Geibel, C.
Synthesis, Structure, and Properties of New Perovskite PbVO3 (2004)
Shpanchenko, R. V., Chernaya, V. V., Tsirlin, A. A., Chizhov, P. S., Sklovsky, D. E., Antipov, E. V., ...
Electron spin resonance of the Kondo ion in YbRh2Si2 (2004)
Sichelschmidt, J., Ivanshin, V. A., Ferstl, J., Geibel, C., Steglich, F.
Nature of the A Phase in CeCu2Si2 (2004)
Stockert, O., Faulhaber, E., Zwicknagl, G., Stüßer, N., Jeevan, H. S., Deppe, M., ...
Effect of impurity scattering on the superconductivity of CeCu2Si2 (2004)
Yuan, H. Q., Grosche, F. M., Deppe, M., Geibel, C., Sparn, G., Steglich, F.
Suppression of the Kondo state in YbRh2Si2 by large magnetic fields (2004)
Tokiwa, Y., Gegenwart, P., Weickert, F., Küchler, R., Custers, J., Ferstl, J., ...
Magnetic field dependence of the A-phase in CeCu2Si2 (2004)
Faulhaber, E., Stockert, O., Prokes, K., Stüßer, N., Jeevan, H. S., Geibel, C., ...
Magnetic order of CePd5Ge3 and CePt5Ge3 (2004)
Stockert, O., Hossain, Z., Deppe, M., Hohlwein, D., Geibel, C.
SEARCHING FOR QUANTUM PHASE TRANSITIONS IN NARROW-BAND METALS (2004)
Grosche, F. M., Moroni-Klementowicz, D., Burrell, R., Fort, D., Awaka, J., Nagata, S., ...
Observation of Two Distinct Superconducting Phases in CeCu2Si2 (2003)
Yuan,H. Q., Grosche,F. M., Deppe,M., Geibel,C., Sparn,G., Steglich,F.
Singh, Yogesh, Ramakrishnan, S., Geibel, C.
We report the effect of hydrostatic pressure on the resistivity of the heavy fermion Kondo lattice compound Yb$_2$Fe$_3$Si$_5$ in the temperature range 2-300 K and in pressures upto 10 Kbar. At...
Kawasaki, Y., Ishida, K., Kawasaki, S., Mito, T., Kitaoka, Y., ...
We report a pressure ($P$) effect on CeCu$_2$(Si$_{0.98}$Ge$_{0.02}$)$_2$ where an antiferromagnetic (AFM) order at $T_N \sim$ 0.75 K coexists with superconductivity below $T_c \sim$ 0.4 K\@. At...
Low-temperature magnetic order and spin dynamics in YbRh2Si2 (2003)
Ishida,K., MacLaughlin,D. E., Young,B. L., Okamoto,K., Kawasaki,Y., Kitaoka,Y., ...
Low Temperature Electron Spin Resonance of the Kondo Ion in a Heavy Fermion Metal: YbRh2Si2 (2003)
Sichelschmidt,J., Ivanshin,V. A., Ferstl,J., Geibel,C., Steglich,F.
Tuning heavy fermion systems into quantum criticality by magnetic field (2003)
Gegenwart,P., Custers,J., Tayama,T., Tenya,K., Geibel,C., Sparn,G., ...
Divergence of the Grüneisen Ratio at Quantum Critical Points in Heavy Fermion Metals (2003)
Küchler,R., Oeschler,N., Gegenwart,P., Cichorek,T., Neumaier,K., Tegus,O., ...
Divergence of the Grueneisen Ratio at Quantum Critical Points in Heavy Fermion Metals (2003)
Kuechler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., ...
We present low-temperature volume thermal expansion, $\beta$, and specific heat, $C$, measurements on high-quality single crystals of CeNi2Ge2 and YbRh2(Si$_{0.95}$Ge$_{0.05}$)$_2$ which are located...
ESR study of the anisotropic exchange in the quasi-one-dimensional antiferromagnet Sr2V3O9 (2003)
Ivan'shin,V. A., Yushankhai,V., Sichelschmidt,J., Zakharov,D. V., Kaul,E. E., Geibel,C.
The break-up of heavy electrons at a quantum critical point (2003)
Custers,J., Gegenwart,P., Wilhelm,H., Neumaier,K., Tokiwa,Y., Trovarelli,O., ...
The break up of heavy electrons at a quantum critical point (2003)
Custers, J., Gegenwart, P., Wilhelm, H., Neumaier, K., Tokiwa, Y., Trovarelli, O., ...
The point at absolute zero where matter becomes unstable to new forms of order is called a quantum critical point (QCP). The quantum fluctuations between order and disorder that develop at this point...
Quantum criticality in YbRh2Si2 (2003)
Custers,J., Gegenwart,P., Neumaier,K., Wilhelm,H., Oeschler,N., Ishida,K., ...
Low temperature magnetic phase diagram of the cubic non-Fermi liquid system CeIn_(3-x)Sn_x (2003)
Pedrazzini, P., Berisso, M. Gomez, Sereni, J. G., Caroca-canales, N., Deppe, M., Geibel, C.
In this paper we report a comprehensive study of the magnetic susceptibility (\chi), resistivity (\rho), and specific heat (C_P), down to 0.5 K of the cubic CeIn_(3-x)Sn_x alloy. The ground state of...
Synthesis, structure and magnetic properties of the new mixed-valence vanadate Na2SrV3O9 (2003)
Shpanchenko,R. V., Chernaya,V. V., Antipov,E. V., Hadermann,J., Kaul,E. E., Geibel,C.
Unusual behavior of the low-moment magnetic ground state of YbRh2Si2 under high pressure (2003)
Plessel,J., Abd-Elmeguid,M. M., Sanchez,J. P., Knebel,G., Geibel,C., Trovarelli,O., ...
μSR and low-temperature antiferromagnetism in the ordered non-Fermi-liquid compound YbRh2Si2 (2003)
Ishida,K., MacLaughlin,D. E., Okamoto,K., Kawasaki,Y., Kitaoka,Y., Nieuwenhuys,G. J., ...
Al Knight-shift measurement in the superconducting state of UNi2Al3 (2003)
Ishida,K., Tou,H., Tateiwa,N., Kitaoka,Y., Sato,K. N., Aso,N., ...
Structure and transport in multi-orbital Kondo systems (2003)
Kroha,J., Kirchner,S., Sellier,G., Wölfle,P., Ehm,D., Reinert,F., ...
Recent trends in heavy-fermion physics (2003)
Steglich,F., Sato,N. K., Aso,N., Gegenwart,P., Custers,J., Neumaier,K., ...
Tuning Heavy Fermion Systems into Quantum Criticality by Magnetic Field (2003)
Gegenwart, P., Custers, J., Tayama, T., Tenya, K., Geibel, C., Sparn, G., ...
We discuss a series of thermodynamic, magnetic and electrical transport experiments on the two heavy fermion compounds CeNi2Ge2 and YbRh2Si2 in which magnetic fields, B, are used to tune the systems...
Antiferromagnetic ordering in the Kondo lattice system Yb$_2$Fe$_3$Si$_5$ (2003)
Singh, Yogesh, Ramakrishnan, S., Hossain, Z., Geibel, C.
Compounds belonging to the R$_2$Fe$_3$Si$_5$ series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant antiferromagnet...
Low-temperature specific heat of slightly off-stoichiometric CeNi2Ge2 (2003)
Cichorek,T., Geibel,C., Carocca-Canales,N., Lühmann,T., Gegenwart,P., Steglich,F.
Non-Fermi liquid effects close to a QCP in CeIn3-xSnx (2003)
Custers,J., Cichorek,T., Gegenwart,P., Caroca-Canales,N., Stockert,O., Geibel,C., ...
Spin dynamics in a structurally ordered non-Fermi-liquid compound: YbRh2Si2 (2003)
Ishida,K., MacLaughlin,D. E., Bernal,O. O., Heffner,R. H., Nieuwenhuys,G. J., Trovarelli,O., ...
HALL EFFECT OF THE NFL COMPOUND YbRh2Si2 (2003)
Paschen,S., Lühmann,T., Langhammer,C., Trovarelli,O., Wirth,S., Geibel,C., ...
NEUTRON DIFFERACTION STUDY OF THE MAGNETISM IN SINGLE-CRYSTALLINE CeCu2(Si1-xGex)2 (2003)
Stockert,O., Deppe,M., Geibel,C., Steglich,F., Hohlwein,D., Schneider,R.
PRESSURE EFFECT ON THE MAGNETISM AND SUPERCONDUCTIVITY IN SINGLE CRYSTAL CeCu2(Si0.9Ge0.1)2 (2003)
Yuan,H. Q., Deppe,M., Sparn,G., Grosche,F. M., Geibel,C., Steglich,F.
Divergence of the Gruneisen ratio at quantum critical points in heavy fermion metals (2003)
Kuchler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., ...
COMPLEX MAGNETIC PHASE DIAGRAM NEAR THE QUANTUM CRITICAL POINT IN CeIn3-xSnx (2003)
Pedrazzini,P., Gómez Berisso,M., Sereni,J. G., Caroca-Canales,N., Deppe,M., Geibel,C.
Low-temperature specific heat of slightly off-stoichiometric CeNi2Ge2 (2003)
Cichorek, T., Geibel, C., Carocca-Canales, N., Lühmann, T., Gegenwart, P., Steglich, F.
Non-Fermi liquid effects close to a QCP in CeIn3-xSnx (2003)
Custers, J., Cichorek, T., Gegenwart, P., Caroca-Canales, N., Stockert, O., Geibel, C., ...
Quantum criticality in YbRh2Si2 (2003)
Custers, J., Gegenwart, P., Neumaier, K., Wilhelm, H., Oeschler, N., Ishida, K., ...
The break-up of heavy electrons at a quantum critical point (2003)
Custers, J., Gegenwart, P., Wilhelm, H., Neumaier, K., Tokiwa, Y., Trovarelli, O., ...
Tuning heavy fermion systems into quantum criticality by magnetic field (2003)
Gegenwart, P., Custers, J., Tayama, T., Tenya, K., Geibel, C., Sparn, G., ...
Spin dynamics in a structurally ordered non-Fermi-liquid compound: YbRh2Si2 (2003)
Ishida, K., MacLaughlin, D. E., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., Trovarelli, O., ...
μSR and low-temperature antiferromagnetism in the ordered non-Fermi-liquid compound YbRh2Si2 (2003)
Ishida, K., MacLaughlin, D. E., Okamoto, K., Kawasaki, Y., Kitaoka, Y., Nieuwenhuys, G. J., ...
Low-temperature magnetic order and spin dynamics in YbRh2Si2 (2003)
Ishida, K., MacLaughlin, D. E., Young, B. L., Okamoto, K., Kawasaki, Y., Kitaoka, Y., ...
Al Knight-shift measurement in the superconducting state of UNi2Al3 (2003)
Ishida, K., Tou, H., Tateiwa, N., Kitaoka, Y., Sato, K. N., Aso, N., ...
ESR study of the anisotropic exchange in the quasi-one-dimensional antiferromagnet Sr2V3O9 (2003)
Ivan'shin, V. A., Yushankhai, V., Sichelschmidt, J., Zakharov, D. V., Kaul, E. E., Geibel, C.
Structure and transport in multi-orbital Kondo systems (2003)
Kroha, J., Kirchner, S., Sellier, G., Wölfle, P., Ehm, D., Reinert, F., ...
Divergence of the Grüneisen Ratio at Quantum Critical Points in Heavy Fermion Metals (2003)
Küchler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., ...
HALL EFFECT OF THE NFL COMPOUND YbRh2Si2 (2003)
Paschen, S., Lühmann, T., Langhammer, C., Trovarelli, O., Wirth, S., Geibel, C., ...
Unusual behavior of the low-moment magnetic ground state of YbRh2Si2 under high pressure (2003)
Plessel, J., Abd-Elmeguid, M. M., Sanchez, J. P., Knebel, G., Geibel, C., Trovarelli, O., ...
Synthesis, structure and magnetic properties of the new mixed-valence vanadate Na2SrV3O9 (2003)
Shpanchenko, R. V., Chernaya, V. V., Antipov, E. V., Hadermann, J., Kaul, E. E., Geibel, C.
Low Temperature Electron Spin Resonance of the Kondo Ion in a Heavy Fermion Metal: YbRh2Si2 (2003)
Sichelschmidt, J., Ivanshin, V. A., Ferstl, J., Geibel, C., Steglich, F.
Recent trends in heavy-fermion physics (2003)
Steglich, F., Sato, N. K., Aso, N., Gegenwart, P., Custers, J., Neumaier, K., ...
NEUTRON DIFFERACTION STUDY OF THE MAGNETISM IN SINGLE-CRYSTALLINE CeCu2(Si1-xGex)2 (2003)
Stockert, O., Deppe, M., Geibel, C., Steglich, F., Hohlwein, D., Schneider, R.
PRESSURE EFFECT ON THE MAGNETISM AND SUPERCONDUCTIVITY IN SINGLE CRYSTAL CeCu2(Si0.9Ge0.1)2 (2003)
Yuan, H. Q., Deppe, M., Sparn, G., Grosche, F. M., Geibel, C., Steglich, F.
Observation of Two Distinct Superconducting Phases in CeCu2Si2 (2003)
Yuan, H. Q., Grosche, F. M., Deppe, M., Geibel, C., Sparn, G., Steglich, F.
COMPLEX MAGNETIC PHASE DIAGRAM NEAR THE QUANTUM CRITICAL POINT IN CeIn3-xSnx (2003)
Pedrazzini, P., Gómez Berisso, M., Sereni, J. G., Caroca-Canales, N., Deppe, M., Geibel, C.
Exotic magnetism and superconductivity in Ge-substituted CeCu2Si2: A Cu NQR study (2002)
Kawasaki,Y., Ishida,K., Obinata,K., Tabuchi,K., Kashima,K., Kitaoka,Y., ...
We report Cu NQR results on Ge-doped heavy-fermion superconductors CeCu2(Si1-xGex)(2) (0< x≦0.2) and compare with previous results on Ce0.99Cu2.02Si2 (x=0). Once only 1% Ge is substituted for Si to...
Berisso,M. G., Pedrazzini,P., Sereni,J. G., Trovarelli,O., Geibel,C., Steglich,F.
We present electrical resistivity and specific heat measurements of alloys on the Rh rich side of the phase diagram of the Ce(Rh1-xPdx)(2)Si-2 system. We compare these results with those obtained at...
An unconventional metallic state in YbRh2(Si1-xGex)2 - a high pressure study (2002)
Mederle,S., Borth,R., Geibel,C., Grosche,F. M., Sparn,G., Trovarelli,O., ...
We present a detailed pressure study of the electrical resistivity p(T) and the specific heat C(T) of the non-Fermi- liquid (NFL) compound YbRh2Si2, and of p(T) for a single crystal in which 5 at.%...
Structure and magnetic order of the Heusler compound Co2NbSn (2002)
Wolter,A. U. B., Bosse,A., Baabe,D., Maksimov,I., Mienert,D., Klauss,H. H., ...
We present a detailed study of the structural and magnetic phase transitions of the Heusler compound Co2NbSn. This material undergoes a structural transition at T-S=235 K from the cubic Heusler Fm3m...
Magnetic transition in the Kondo lattice system CeRhSn2 (2002)
Hossain,Z., Gupta,L. C., Geibel,C.
We present the results of our measurements of magnetization, heat capacity, resistivity and magnetoresistance on the Ce- based intermetallic compound CeRhSn2. The magnetic transition, as reported...
Magnetic Transition in the Kondo Lattice System CeRhSn2 (2002)
Hossain, Z., Gupta, L. C., Geibel, C.
Our resistivity, magnetoresistance, magnetization and specific heat data provide unambiguous evidence that CeRhSn2 is a Kondo lattice system which undergoes magnetic transition below 4 K.
Kaul, E. E., Rosner, H., Yushankhai, V., Sichelschmidt, J., Shpanchenko, R. V., Geibel, C.
The magnetic behaviour of the low-dimensional Vanadium-oxides Sr2V3O9 and Ba2V3O9 was investigated by means of magnetic susceptibility and specific heat measurements. In both compounds, the results...
YbRh2Si2: Spin Fluctuations in the Vicinity of a Quantum Critical Point at Low Magnetic Field (2002)
Ishida,K., Okamoto,K., Kawasaki,Y., Kitaoka,Y., Trovarelli,O., Geibel,C., ...
We report a Si-29 NMR study on aligned single crystals of YbRh2Si2 which shows behavior characteristic of a quantum critical point (QCP: T-N-->0). The Knight shift K and the nuclear spin-lattice...
Magnetic-Field Induced Quantum Critical Point in YbRh2Si2 (2002)
Gegenwart,P., Custers,J., Geibel,C., Neumaier,K., Tayama,T., Tenya,K., ...
We report low-temperature calorimetric, magnetic, and resistivity measurements on the antiferromagnetic (AF) heavy- fermion metal YbRh2Si2 ( T-N=70 mK) as a function of magnetic field B. While for...
Antiferromagnetic transition in CePd2B2C and possible heavy- fermion behaviour in CePt2B2C (2002)
Hossain,Z., Geibel,C., Gupta,L. C., Nagarajan,R., Godart,C.
Our measurements of the magnetic susceptibility, resistivity and specific heat of CePd2B2C, a quaternary borocarbide, show clearly that Ce is in a stable trivalent state in this compound and orders...
Gegenwart, P., Custers, J., Tayama, T., Tenya, K., Geibel, C., Trovarelli, O., ...
We report low temperature specific heat, C, magnetization, M, susceptibility, chi, and electrical resistivity, rho, measurements on high-quality single crystals of the heavy-fermion system...
Spin dynamics in a structurally ordered non-Fermi liquid compound: YbRh_2Si_2 (2002)
Ishida, K., MacLaughlin, D. E., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., Trovarelli, O., ...
Muon spin relaxation (muSR) experiments have been carried out at low temperatures in the non-Fermi-liquid heavy-fermion compound YbRh_2Si_2. The longitudinal-field muSR relaxation function is...
Spin-Triplet Superconductivity in UNi2Al3 Revealed by the 27Al Knightshift Measurement (2002)
Ishida,K., Ozaki,D., Kamatsuka,T., Tou,H., Kyogaku,M., Kitaoka,Y., ...
We report Al-27 Knight shift (K-27) measurement on a single- crystal UNi2Al3 that reveals a coexistence of superconductivity and a spin-density-wave (SDW) type of magnetic ordering (T- SDW=4.5 K )....
Antiferromagnetic ordering in the Kondo lattice system Yb2Fe3Si5 (2002)
Singh,Y., Ramakrishnan,S., Hossain,Z., Geibel,C.
Compounds belonging to the R2Fe3Si5 series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant antiferromagnet superconductor...
Composition dependence of the magnetic properties of Ge-doped CeCu2Si2 (2002)
Berisso,M. G., Pedrazzini,P., Deppe,M., Trovarelli,O., Geibel,C., Sereni,J. G.
Due to the proximity of CeCu2Si2 to a quantum critical point, the ground state of this compound is extremely sensitive to sample preparation conditions. Small excess of one component can lead to...
Magnetic-Field Induced Quantum Critical Point in YbRh$_2$Si$_2$ (2002)
Gegenwart, P., Custers, J., Geibel, C., Neumaier, K., Tayama, T., Tenya, K., ...
We report low-temperature calorimetric, magnetic and resistivity measurements on the antiferromagnetic (AF) heavy-fermion metal YbRh$_2$Si$_2$ (${T_N =}$ 70 mK) as a function of magnetic field $B$....
Coexistence of antiferromagnetism and superconductivity in heavy-fermion systems (2002)
Kitaoka,Y., Kawasaki,Y., Mito,T., Kawasaki,S., Zheng,G. Q., Ishida,K., ...
We report the novel pressure (P)-temperature (T) phase diagrams of antiferromagnetism (AFM) and superconductivity (SC) in CeRhIn5, CeIn3, and CeCu2Si2 revealed by the nuclear quadrupole resonance...
Koda,A., Higemoto,W., Kadono,R., Kawasaki,Y., Ishida,K., Kitaoka,Y., ...
Muon spin rotation measurements under high transverse fields (HTF-ASR) have been performed on polycrystalline samples of Ce0.99Cu2.02Si2. The muon hyperfine coupling constant was determined to be...
Magnetic history effects in the Heusler compound Co2NbSn (2002)
Wolter,A. U. B., Klauss,H. H., Litterst,F. J., Geibel,C., Süllow,S.
The magnetic properties of the Heusler compound Co2NbSn have been investigated. Whereas Co2NbSn is paramagnetic above T-c = 116 K, it changes into a ferromagnetic state below T-c. Based upon the...
Quantitative line shape analysis of the Kondo resonance of cerium compounds (2002)
Ehm,D., Reinert,F., Schmidt,S., Nicolay,G., Hüfner,S., Kroha,J., ...
By use of high-resolution photoelectron spectroscopy we investigate the 4f spectral function of the heavy fermion compound CeRu2Si2 in the energy range close to the Fermi level. A normalization...
Cu-NQR study of CeCu2(Si0.98Ge0.02)2 under hydrostatic pressure (2002)
Kawasaki,Y., Ishida,K., Obinata,K., Mito,T., Zheng,G. Q., Kitaoka,Y., ...
We report a pressure effect on CeCu2(Si0.98Ge0.02)(2) where an anti ferromagnetic order below T-N similar to 0.75 K coexists with superconductivity below T-c similar to0.4 K. At pressures exceeding...
The magnetic phases of Ce(Cu1-xNix)2Ge2 (2002)
Klauss,H. H., Sullow,S., Walf,H., Mienert,D., Baabe,D., ...
The magnetic phase diagram of the system Ce(Cu1-xNix)(2)Ge-2 with 0less than or equal tox
NMR study of doped alpha '-NaV2O5 single crystals (2002)
Michalak,R., Mohammad,H., Dischner,M., Geibel,C.
Na-23 and V-51 NMR in the low temperature phase of sodium vanadate show the existence of three vanadium and 8 or 10 sodium sites. These are due to the charge ordering transition and the dimerization...
Non-Fermi liquid behaviour in cubic CeIn3-xSnx (2002)
Pedrazzini,P., Berisso,M. G., Caroca-Canales,N., Deppe,M., Geibel,C., Sereni,J. G.
The alloy between the antiferromagnetic (AF) CeIn3 and the mixed valent CeSn3 is particularly interesting since it is one of the few cases where a magnetic to non-magnetic transition is observed in a...
Effect of Ge-doping and pressure in the vicinity of the QCP of YbRh2Si2 (2002)
Trovarelli,O., Custers,J., Gegenwart,P., Geibel,C., Hinze,P., Mederle,S., ...
We present electrical resistivity (p) and AC magnetic susceptibility measurements on Ge-doped single crystals of the NFL compound YbRh2Si2. Upon producing the volume expansion (DeltaVsimilar or equal...
Evolution of magnetic order in the Kondo system Ce2Ir3Ge5 under pressure (2002)
Yuan,H. Q., Hossain,Z., Grosche,F. M., Sparn,G., Geibel,C., Steglich,F., ...
The evolution of antiferromagnetic order in the Kondo system Ce2Ir3Ge5 was investigated by measurements of the electrical resistivity under hydrostatic pressure. At low pressure (p < 1.0 GPa), T-N =...
Coexistence of antiferromagnetism and superconductivity in heavy-fermions systems (2002)
Kitaoka, Y., Kawasaki, Y., Mito, T., Kawasaki, S., Ishida, K., ...
We report the novel pressure(P)-temperature(T) phase diagrams of antiferromagnetism (AF) and superconductivity (SC) in CeRhIn$_5$, CeIn$_3$ and CeCu$_2$Si$_2$ revealed by the NQR measurement. In the...
Dielectric properties of the low dimensional vanadium oxides Ba2V3O9 and Sr2V3O9 (2002)
Bobnar,V., Lunkenheimer,P., Loidl,A., Kaul,E. E., Geibel,C.
The dielectric response of the low-dimensional vanadium oxides Ba2V3O9 and Sr2V3O9 has been investigated in the frequency range of 20 Hz-1 MHz. At low frequencies the dielectric response is governed...
Quasi-one-dimensional spin chains in CuSiO3: an EPR study (2002)
Sichelschmidt,J., Baenitz,M., Geibel,C., Steglich,F., Loidl,A., Otto,H. H.
Temperature-dependent electron paramagnetic resonance (EPR) studies were performed on CuSiO3. This recently discovered compound is isostructural with the spin-Peierls compound CuGeO3. The EPR signals...
Composition dependence of the magnetic properties of Ge-doped CeCu2Si2 (2002)
Berisso, M. G., Pedrazzini, P., Deppe, M., Trovarelli, O., Geibel, C., Sereni, J. G.
Due to the proximity of CeCu2Si2 to a quantum critical point, the ground state of this compound is extremely sensitive to sample preparation conditions. Small excess of one component can lead to...
Berisso, M. G., Pedrazzini, P., Sereni, J. G., Trovarelli, O., Geibel, C., Steglich, F.
We present electrical resistivity and specific heat measurements of alloys on the Rh rich side of the phase diagram of the Ce(Rh1-xPdx)(2)Si-2 system. We compare these results with those obtained at...
Dielectric properties of the low dimensional vanadium oxides Ba2V3O9 and Sr2V3O9 (2002)
Bobnar, V., Lunkenheimer, P., Loidl, A., Kaul, E. E., Geibel, C.
The dielectric response of the low-dimensional vanadium oxides Ba2V3O9 and Sr2V3O9 has been investigated in the frequency range of 20 Hz-1 MHz. At low frequencies the dielectric response is governed...
Quantitative line shape analysis of the Kondo resonance of cerium compounds (2002)
Ehm, D., Reinert, F., Schmidt, S., Nicolay, G., Hüfner, S., Kroha, J., ...
By use of high-resolution photoelectron spectroscopy we investigate the 4f spectral function of the heavy fermion compound CeRu2Si2 in the energy range close to the Fermi level. A normalization...
Magnetic-Field Induced Quantum Critical Point in YbRh2Si2 (2002)
Gegenwart, P., Custers, J., Geibel, C., Neumaier, K., Tayama, T., Tenya, K., ...
We report low-temperature calorimetric, magnetic, and resistivity measurements on the antiferromagnetic (AF) heavy- fermion metal YbRh2Si2 ( T-N=70 mK) as a function of magnetic field B. While for...
Antiferromagnetic transition in CePd2B2C and possible heavy- fermion behaviour in CePt2B2C (2002)
Hossain, Z., Geibel, C., Gupta, L. C., Nagarajan, R., Godart, C.
Our measurements of the magnetic susceptibility, resistivity and specific heat of CePd2B2C, a quaternary borocarbide, show clearly that Ce is in a stable trivalent state in this compound and orders...
Magnetic transition in the Kondo lattice system CeRhSn2 (2002)
Hossain, Z., Gupta, L. C., Geibel, C.
We present the results of our measurements of magnetization, heat capacity, resistivity and magnetoresistance on the Ce- based intermetallic compound CeRhSn2. The magnetic transition, as reported...
YbRh2Si2: Spin Fluctuations in the Vicinity of a Quantum Critical Point at Low Magnetic Field (2002)
Ishida, K., Okamoto, K., Kawasaki, Y., Kitaoka, Y., Trovarelli, O., Geibel, C., ...
We report a Si-29 NMR study on aligned single crystals of YbRh2Si2 which shows behavior characteristic of a quantum critical point (QCP: T-N-->0). The Knight shift K and the nuclear spin-lattice...
Spin-Triplet Superconductivity in UNi2Al3 Revealed by the 27Al Knightshift Measurement (2002)
Ishida, K., Ozaki, D., Kamatsuka, T., Tou, H., Kyogaku, M., Kitaoka, Y., ...
We report Al-27 Knight shift (K-27) measurement on a single- crystal UNi2Al3 that reveals a coexistence of superconductivity and a spin-density-wave (SDW) type of magnetic ordering (T- SDW=4.5 K )....
Cu-NQR study of CeCu2(Si0.98Ge0.02)2 under hydrostatic pressure (2002)
Kawasaki, Y., Ishida, K., Obinata, K., Mito, T., Zheng, G. Q., Kitaoka, Y., ...
We report a pressure effect on CeCu2(Si0.98Ge0.02)(2) where an anti ferromagnetic order below T-N similar to 0.75 K coexists with superconductivity below T-c similar to0.4 K. At pressures exceeding...
Exotic magnetism and superconductivity in Ge-substituted CeCu2Si2: A Cu NQR study (2002)
Kawasaki, Y., Ishida, K., Obinata, K., Tabuchi, K., Kashima, K., Kitaoka, Y., ...
We report Cu NQR results on Ge-doped heavy-fermion superconductors CeCu2(Si1-xGex)(2) (0< x≦0.2) and compare with previous results on Ce0.99Cu2.02Si2 (x=0). Once only 1% Ge is substituted for Si to...
Coexistence of antiferromagnetism and superconductivity in heavy-fermion systems (2002)
Kitaoka, Y., Kawasaki, Y., Mito, T., Kawasaki, S., Zheng, G. Q., Ishida, K., ...
We report the novel pressure (P)-temperature (T) phase diagrams of antiferromagnetism (AFM) and superconductivity (SC) in CeRhIn5, CeIn3, and CeCu2Si2 revealed by the nuclear quadrupole resonance...
The magnetic phases of Ce(Cu1-xNix)2Ge2 (2002)
Klauss, H. H., Sullow, S., Walf, H., Mienert, D., Baabe, D., ...
The magnetic phase diagram of the system Ce(Cu1-xNix)(2)Ge-2 with 0less than or equal tox
Koda, A., Higemoto, W., Kadono, R., Kawasaki, Y., Ishida, K., Kitaoka, Y., ...
Muon spin rotation measurements under high transverse fields (HTF-ASR) have been performed on polycrystalline samples of Ce0.99Cu2.02Si2. The muon hyperfine coupling constant was determined to be...
An unconventional metallic state in YbRh2(Si1-xGex)2 - a high pressure study (2002)
Mederle, S., Borth, R., Geibel, C., Grosche, F. M., Sparn, G., Trovarelli, O., ...
We present a detailed pressure study of the electrical resistivity p(T) and the specific heat C(T) of the non-Fermi- liquid (NFL) compound YbRh2Si2, and of p(T) for a single crystal in which 5 at.%...
NMR study of doped alpha '-NaV2O5 single crystals (2002)
Michalak, R., Mohammad, H., Dischner, M., Geibel, C.
Na-23 and V-51 NMR in the low temperature phase of sodium vanadate show the existence of three vanadium and 8 or 10 sodium sites. These are due to the charge ordering transition and the dimerization...
Non-Fermi liquid behaviour in cubic CeIn3-xSnx (2002)
Pedrazzini, P., Berisso, M. G., Caroca-Canales, N., Deppe, M., Geibel, C., Sereni, J. G.
The alloy between the antiferromagnetic (AF) CeIn3 and the mixed valent CeSn3 is particularly interesting since it is one of the few cases where a magnetic to non-magnetic transition is observed in a...
Quasi-one-dimensional spin chains in CuSiO3: an EPR study (2002)
Sichelschmidt, J., Baenitz, M., Geibel, C., Steglich, F., Loidl, A., Otto, H. H.
Temperature-dependent electron paramagnetic resonance (EPR) studies were performed on CuSiO3. This recently discovered compound is isostructural with the spin-Peierls compound CuGeO3. The EPR signals...
Antiferromagnetic ordering in the Kondo lattice system Yb2Fe3Si5 (2002)
Singh, Y., Ramakrishnan, S., Hossain, Z., Geibel, C.
Compounds belonging to the R2Fe3Si5 series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant antiferromagnet superconductor...
Effect of Ge-doping and pressure in the vicinity of the QCP of YbRh2Si2 (2002)
Trovarelli, O., Custers, J., Gegenwart, P., Geibel, C., Hinze, P., Mederle, S., ...
We present electrical resistivity (p) and AC magnetic susceptibility measurements on Ge-doped single crystals of the NFL compound YbRh2Si2. Upon producing the volume expansion (DeltaVsimilar or equal...
Transport Properties of URhGa5 single Crystals (2002)
Wawryk, R., Henkie, Z., Cichorek, T., Geibel, C., Steglich, F.
Structure and magnetic order of the Heusler compound Co2NbSn (2002)
Wolter, A. U. B., Bosse, A., Baabe, D., Maksimov, I., Mienert, D., Klauss, H. H., ...
We present a detailed study of the structural and magnetic phase transitions of the Heusler compound Co2NbSn. This material undergoes a structural transition at T-S=235 K from the cubic Heusler Fm3m...
Magnetic history effects in the Heusler compound Co2NbSn (2002)
Wolter, A. U. B., Klauss, H. H., Litterst, F. J., Geibel, C., Süllow, S.
The magnetic properties of the Heusler compound Co2NbSn have been investigated. Whereas Co2NbSn is paramagnetic above T-c = 116 K, it changes into a ferromagnetic state below T-c. Based upon the...
Evolution of magnetic order in the Kondo system Ce2Ir3Ge5 under pressure (2002)
Yuan, H. Q., Hossain, Z., Grosche, F. M., Sparn, G., Geibel, C., Steglich, F., ...
The evolution of antiferromagnetic order in the Kondo system Ce2Ir3Ge5 was investigated by measurements of the electrical resistivity under hydrostatic pressure. At low pressure (p < 1.0 GPa), T-N =...
Berisso, M. Gomez, Pedrazzini, P., Sereni, J. G., Trovarelli, O., Geibel, C., Steglich, F.
We present electrical resistivity and specific heat measurements of alloys on the Rh rich side of the phase diagram of the Ce(Rh$_{1-x}$Pd$_x$)$_2$Si$_2$ system and compare the results with those...
Grazioli, C., Hu, Z., Golden, M. S., Attenkofer, J. Fink K., Trovarelli, O., Geibel, C.
We have used temperature dependent x-ray absorption at the Ce-L3 edge to investigate the recently discovered Kondo compound Ce2Rh3Al9. The systematic changes of the spectral lineshape with decreasing...
Kondo effect in Ce(x)La(1-x)Cu(2.05)Si(2) intermetallics (2001)
Aviani, I., Miljak, M., Zlatic, V., Geibel, C., Steglich, F.
The magnetic susceptibility and susceptibility anisotropy of the quasi-binary alloy system Ce(x)La(1-x)Cu(2.05)Si(2) have been studied for low concentration of Ce ions. The single-ion desc ription is...
Temperature dependence of the Kondo resonance and its satellites in CeCu_2Si_2 (2001)
Reinert, F., Ehm, D., Schmidt, S., Nicolay, G., H"ufner, S., Kroha, J., ...
We present high-resolution photoemission spectroscopy studies on the Kondo resonance of the strongly-correlated Ce system CeCu$_2$Si$_2$. Exploiting the thermal broadening of the Fermi edge we...
Magnetic state in URu2Si2, UPd2Al3 and UNi2Al3 probed by point contacts (2001)
Naidyuk, Yu. G., Kvitnitskaya, O. E., Jansen, A. G. M., Geibel, C., Menovsky, A. A., Wyder, P.
The antiferromagnetic (AFM) state has been investigated in the three heavy-fermion compounds URu2Si2, UPd2Al3, and UNi2Al3 by measuring dV/dI(V) curves of point contacts at different temperatures...
Electronic structure of CuGeO3 : charge excitations between zero and one dimension (2001)
Atzkern, S., Knupfer, M., Golden, M.S., Fink, J., Hubsch, A., Waidacher, C., ...
Electronic structure of CuGeO3: Charge excitations between zero and one dimension (2001)
Atzkern,S., Knupfer,M., Golden,M. S., Fink,J., Hübsch,A., Waidacher,C., ...
LOW-TEMPERATURE MAGNETIC AND TRANSPORT PROPERTIES OF THE CLEAN NFL SYSTEM YbRh2(Si1-xGex)2 (2001)
Custers,J., Gegenwart,P., Geibel,C., Steglich,F., Tayama,T., Trovarelli,O., ...
Ehm,D., Reinert,F., Nicolay,G., Schmidt,S., Hüfner,S., Claessen,R., ...
Evidence for low-dimensional magnetic behaviour in CePt5Ge3 (2001)
Hossain,Z., Takabatake,T., Geibel,C., Gegenwart,P., Oguro,I., Steglich,F.
Kawasaki,Y., Ishida,K., Mito,T., Thessieu,C., Kitaoka,Y., ...
Magnetism and Superconductivity in CeCu2(Si1-xGex)2 Probed by Cu NQR (2001)
Kawasaki,Y., Ishida,K., Obinata,K., Tabuchi,K., Kashima,K., Kitaoka,Y., ...
Kawasaki,Y., Obinata,K., Ishida,K., Mito,T., Kitaoka,Y., ...
Evidence for an Unconventional Magnetic Instability in the Spin-Tetrahedra System Cu2Te2O5Br2 (2001)
Lemmens,P., Kaul,E. E., Geibel,C., Becker,K., Brenig,W., ...
Unconventional metallic state in YbRh2Si2 - a high-pressure study (2001)
Mederle,S., Borth,R., Geibel,C., Grosche,F. M., Sparn,G., Trovarelli,O., ...
Magnetic phase diagram of Ce(CuxRh1-x)2Si2 (2001)
Pedrazzini,P., Gómez Berisso,M., Sereni,J. G., Trovarelli,O., Geibel,C.
Temperature Dependence of the Kondo Resonance and Its Satellites in CeCu2Si2 (2001)
Reinert,F., Ehm,D., Schmidt,S., Nicolay,G., Hüfner,S., Kroha,J., ...
Strong coupling between local moments and superconducting ’heavy‘ electrons in UPd2Al3 (2001)
Sato,N. K., Aso,N., Miyake,K., Shiina,R., Thalmeier,P., Varelogiannis,G., ...
Crystal Structure and Magnetic Properties of the Novel Oxide Pb2V5O12 (2001)
Shpanchenko,R. V., Chernaya,V. V., Abakumov,A. M., Antipov,E. V., Hadermann,J., Van Tendeloo,G., ...
SUPERCONDUCTIVITY AND MAGNETISM IN HEAVY-FERMIONS (2001)
Steglich,F., Gegenwart,P., Geibel,C., Hinze,P., Lang,M., Langhammer,C., ...
Magnetic state in URu2Si2, UPd2Al3, and UNi2Al3 probed by point contacts (2001)
Naidyuk,Y. G., Kvitnitskaya,O. E., Jansen,A. G. M., Wyder,P., Geibel,C., Menovsky,A. A.
Magnetic state in URu2Si2, UPd2Al3 and UNi2Al3 probed by point contacts (2001)
Naidyuk,Y. G., Kvitnitskaya,O. E., Jansen,A. G. M., Geibel,C., Menovsky,A. A., Wyder,P.
Magnetic state in URu2Si2, UPd2Al3, and UNi2Al3 probed by point contacts (2001)
Naidyuk, Y. G., Kvitnitskaya, O. E., Jansen, A. G. M., Wyder, P., Geibel, C., Menovsky, A. A.
Electronic structure of CuGeO3: Charge excitations between zero and one dimension (2001)
Atzkern, S., Knupfer, M., Golden, M. S., Fink, J., Hübsch, A., Waidacher, C., ...
Kondo effect in CexLa1-xCu2.05Si intermetallics (2001)
Aviani, I., Miljak, M., Zlatić, V., Geibel, C., Steglich, F.
LOW-TEMPERATURE MAGNETIC AND TRANSPORT PROPERTIES OF THE CLEAN NFL SYSTEM YbRh2(Si1-xGex)2 (2001)
Custers, J., Gegenwart, P., Geibel, C., Steglich, F., Tayama, T., Trovarelli, O., ...
Evidence for low-dimensional magnetic behaviour in CePt5Ge3 (2001)
Hossain, Z., Takabatake, T., Geibel, C., Gegenwart, P., Oguro, I., Steglich, F.
Magnetism and Superconductivity in CeCu2(Si1-xGex)2 Probed by Cu NQR (2001)
Kawasaki, Y., Ishida, K., Obinata, K., Tabuchi, K., Kashima, K., Kitaoka, Y., ...
Kawasaki, Y., Obinata, K., Ishida, K., Mito, T., Kitaoka, Y., ...
Evidence for an Unconventional Magnetic Instability in the Spin-Tetrahedra System Cu2Te2O5Br2 (2001)
Lemmens, P., Kaul, E. E., Geibel, C., Becker, K., Brenig, W., ...
Unconventional metallic state in YbRh2Si2 - a high-pressure study (2001)
Mederle, S., Borth, R., Geibel, C., Grosche, F. M., Sparn, G., Trovarelli, O., ...
Transport porperties of the CexLa1-xCu2.05Si2 heavy-fermion alloy system (2001)
Očko, M., Drobac, D., Buschinger, B., Geibel, C., Steglich, F.
Magnetic phase diagram of Ce(CuxRh1-x)2Si2 (2001)
Pedrazzini, P., Gómez Berisso, M., Sereni, J. G., Trovarelli, O., Geibel, C.
Temperature Dependence of the Kondo Resonance and Its Satellites in CeCu2Si2 (2001)
Reinert, F., Ehm, D., Schmidt, S., Nicolay, G., Hüfner, S., Kroha, J., ...
Strong coupling between local moments and superconducting ’heavy‘ electrons in UPd2Al3 (2001)
Sato, N. K., Aso, N., Miyake, K., Shiina, R., Thalmeier, P., Varelogiannis, G., ...
Crystal Structure and Magnetic Properties of the Novel Oxide Pb2V5O12 (2001)
Shpanchenko, R. V., Chernaya, V. V., Abakumov, A. M., Antipov, E. V., Hadermann, J., Van Tendeloo, G., ...
SUPERCONDUCTIVITY AND MAGNETISM IN HEAVY-FERMIONS (2001)
Steglich, F., Gegenwart, P., Geibel, C., Hinze, P., Lang, M., Langhammer, C., ...
Magnetic state in URu2Si2, UPd2Al3, and UNi2Al3 probed by point contacts (2001)
Naidyuk, Y. G., Kvitnitskaya, O. E., Jansen, A. G. M., Wyder, P., Geibel, C., Menovsky, A. A.
Magnetic state in URu2Si2, UPd2Al3 and UNi2Al3 probed by point contacts (2001)
Naidyuk, Y. G., Kvitnitskaya, O. E., Jansen, A. G. M., Geibel, C., Menovsky, A. A., Wyder, P.
Evidence for an Unconventional Magnetic Instability in the Spin-Tetrahedra System Cu2Te2O5Br2 (2001)
Kawasaki, Y., Ishida, K., Mito, T., Thessieu, C., Kitaoka, Y., ...
We report Cu nuclear-quadrupole-resonance results under pressure on a homogeneous CeCu2Si2 (Tc = 0.65 K) that revealed critical magnetic fluctuations at the border to an antiferromagnetic phase. This...
Kitaoka, Y., Ishida, K., Kawasaki, Y., Trovarelli, O., Geibel, C., Steglich, F.
We report on the basis of Cu-NQR measurements that superconductivity (SC) and antiferromagnetism (AF) coexist on a microscopic level in CeCu_{2}(Si_{1-x}Ge_{x})_{2}, once a tiny amount of 1%Ge (x =...
Optical properties and electronic structure of Ca-doped alpha'-NaV2O5 (2000)
Presura, C., Dischner, M., Geibel, C., Kremer, R. K.
The dielectric function of alpha'-Na(1-x)Ca(x)V2O5 (0 < x < 20%) was measured for the a and b axes in the photon energy range 0.8-4.5 eV at room temperature. By varying the Ca-concentration we...
CuSiO_3 : a quasi - one - dimensional S=1/2 antiferromagnetic chain system (2000)
Baenitz, M., Geibel, C., Dischner, M., Sparn, G., Steglich, F., Otto, H. H., ...
CuSiO_3, isotypic to the spin - Peierls compound CuGeO_3, was discovered recently as a metastable decomposition product of the silicate mineral dioptase, Cu_6Si_6O_{18}\cdot6H_2O. We investigated the...
Quasi-one-dimensional spin chains in CuSiO3: an EPR study (2000)
Sichelschmidt, J., Loidl, A., Baenitz, M., Otto, H. H., Geibel, C., Steglich, F.
Temperature dependent EPR studies were performed on a single crystal of CuSiO3.This recently discovered compound is isostructural with the spin-Peierls compound CuGeO3. The EPR signals show different...
Point contacts of URu2Si2 and UPd2Al3 in high magnetic fields (2000)
Naidyuk, Y.G., Kvitnitskaya, O.E., Jansen, A.G.M., Geibel, C., Menovsky, A.A., Wyder, P.
Point contacts of URu2Si2 and UPd2Al3 in high magnetic fields (2000)
Naidyuk, Y. G., Kvitnitskaya, O. E., Jansen, A. G. M., Geibel, C., Menovsky, A. A., Wyder, P.
Electron spin resonance study of Na_{1-x}Li_xV_2O_5 (1999)
Lohmann, M., Loidl, A., Morre, E., Dischner, M., Geibel, C.
We measured X-band electron-spin resonance of single crystalline sodium vanadate doped with lithium, Na_{1-x}Li_xV_2O_5 for 0 < x < 1.3% . The phase transition into a dimerized phase that is observed...
Spin gap behavior and charge ordering in \alpha^{\prime}-NaV_2O_5 probed by light scattering (1999)
Fischer, M., Lemmens, P., Els, G., Güntherodt, G., Sherman, E., Morre, E., ...
We present a detailed analysis of light scattering experiments performed on the quarter-filled spin ladder compound $\alpha^\prime$-NaV$_{2}$O$_{5}$ for the temperature range 5 K$\le$T$\le$300 K....
Elastic Constants and Charge Ordering in a'-NaV2O5 (1999)
Schwenk, H., Zherlitsyn, S., Luethi, B., Morre, E., Geibel, C.
We present the temperature dependence of shear and longitudinal elastic constants in a'-NaV2O5. For the longitudinal c22 and c33 modes we find anomalies at Tc in contrast to the Spin Peierls...
Spin-gap behavior and charge ordering in α′-NaV2O5 probed by light scattering (1999)
Fischer,M., Lemmens,P., Els,G., Güntherodt,G., Sherman,E. Y., Morré,E., ...
Evidence for an antiferromagnetic quantum critical point near stoichiometric CeCu2Si2 (1999)
Gegenwart,P., Lang,M., Link,A., Sparn,G., Geibel,C., Steglich,F., ...
Low-temperature properties of the Ce(Pd1-rRhr)2Si2 system. (1999)
Gómez-Berisso,M., Pedrazzini,P., Sereni,J. G., Trovarelli,O., Geibel,C., Steglich,F.
Magnetism in R2T3X9 (R = Ce, Yb, U; T = Rh, Ir; X = Al, Ga) intermetallic compounds (1999)
Hiess,A., Coad,S., Buschinger,B., Trovarelli,O., Boucherle,J. X., Givord,F., ...
Crossover behaviour from magnetism to superconductivity in CexCu2Si2 (1999)
Ishida,K., Kawasaki,Y., Tabuchi,K., Kashima,K., Kitaoka,Y., Asayama,K., ...
Ishida,K., Kawasaki,Y., Tabuchi,K., Kashima,K., Kitaoka,Y., Asayama,K., ...
Ishida,K., Kitaoka,Y., Kawasaki,Y., Tabuchi,K., Kashima,K., Asayama,K., ...
μ+SR Study of heavy fermion magnetism in Ce(Cu1-xNix)2Ge2 (1999)
Krishnamuthy,V. V., Watanabe,I., Nagamine,K., Geibel,C., Sparn,G., Steglich,F.
Magnetic bound states in dimerized quantum spin systems (1999)
Lemmens,P., Fischer,M., Grove,M., Els,G., Güntherodt,G., Weiden,M., ...
M4,5 absorption edges in Ce-Kondo systems (1999)
Delobbe,A., Finazzi,M., Buschinger,B., Trovarelli,O., Geibel,C., ...
Point-contact study of the heavy-fermion systems UPd2Al3 and UNi2Al3 (1999)
Kvitnitskaya,O. E., Naidyuk,Y. G., Nowack,A., Gloos,K., Geibel,C., Jansen,A. G. M., ...
Non-Fermi-Liquid properties and exotic Superconductivity in CeCu2Si2 and (UTh)Be13 (1999)
Lang,M., Gegenwart,P., Helfrich,R., Köppen,M., Kromer,F., Langhammer,C., ...
Magnetic, transport, and thermal properties of Yb2T3X9 compounds (T = Rh, Ir; X = Al, Ga) (1999)
Trovarelli,O., Geibel,C., Buschinger,B., Borth,R., Mederle,S., Grosche,M., ...
Low-temperature properties of YbCo2Ge2 (1999)
Trovarelli,O., Geibel,C., Grosche,M., Schleser,R., Borth,R., Sparn,G., ...
Point-contact study of the heavy-fermion systems UPd2Al3 and UNi2Al3. (1999)
Kvitnitskaya, O. E., Naidyuk, Y. G., Nowack, A., Gloos, K., Geibel, C., Jansen, A. G. M., ...
Magnetic properties of CexLa1-xCu2.05Si2 (1999)
Aviani, I., Miljak, M., Zlatić, V., Buschinger, B., Geibel, C.
Spin-gap behavior and charge ordering in α′-NaV2O5 probed by light scattering (1999)
Fischer, M., Lemmens, P., Els, G., Güntherodt, G., Sherman, E. Y., Morré, E., ...
Evidence for an antiferromagnetic quantum critical point near stoichiometric CeCu2Si2 (1999)
Gegenwart, P., Lang, M., Link, A., Sparn, G., Geibel, C., Steglich, F., ...
Low-temperature properties of the Ce(Pd1-rRhr)2Si2 system. (1999)
Gómez-Berisso, M., Pedrazzini, P., Sereni, J. G., Trovarelli, O., Geibel, C., Steglich, F.
Magnetism in R2T3X9 (R = Ce, Yb, U; T = Rh, Ir; X = Al, Ga) intermetallic compounds (1999)
Hiess, A., Coad, S., Buschinger, B., Trovarelli, O., Boucherle, J. X., Givord, F., ...
Crossover behaviour from magnetism to superconductivity in CexCu2Si2 (1999)
Ishida, K., Kawasaki, Y., Tabuchi, K., Kashima, K., Kitaoka, Y., Asayama, K., ...
μ+SR Study of heavy fermion magnetism in Ce(Cu1-xNix)2Ge2 (1999)
Krishnamuthy, V. V., Watanabe, I., Nagamine, K., Geibel, C., Sparn, G., Steglich, F.
Magnetic bound states in dimerized quantum spin systems (1999)
Lemmens, P., Fischer, M., Grove, M., Els, G., Güntherodt, G., Weiden, M., ...
Acentric Low-Temperature Superstructure of NaV2O5 (1999)
Lüdecke, J., Jobst, A., Van Smaalen, S., Morré, E., Geibel, C.
M4,5 absorption edges in Ce-Kondo systems (1999)
Delobbe, A., Finazzi, M., Buschinger, B., Trovarelli, O., Geibel, C., ...
Point-contact study of the heavy-fermion systems UPd2Al3 and UNi2Al3 (1999)
Kvitnitskaya, O. E., Naidyuk, Y. G., Nowack, A., Gloos, K., Geibel, C., Jansen, A. G. M., ...
Non-Fermi-Liquid properties and exotic Superconductivity in CeCu2Si2 and (UTh)Be13 (1999)
Lang, M., Gegenwart, P., Helfrich, R., Köppen, M., Kromer, F., Langhammer, C., ...
Anomalous heavy fermions in CeNi2Ge2 and CeCu2Si2. (1999)
Steglich, F., Gegenwart, P., Geibel, C., Lang, M., Sparn, G.
Elastic constants and charge ordering in α′-NaV2O5 (1999)
Schwenk, H., Zherlitsyn, S., Lüthi, B., Morre, E., Geibel, C.
Magnetic, transport, and thermal properties of Yb2T3X9 compounds (T = Rh, Ir; X = Al, Ga) (1999)
Trovarelli, O., Geibel, C., Buschinger, B., Borth, R., Mederle, S., Grosche, M., ...
Low-temperature properties of YbCo2Ge2 (1999)
Trovarelli, O., Geibel, C., Grosche, M., Schleser, R., Borth, R., Sparn, G., ...
Magnetic bound states in the quarter-filled ladder system $\alpha'-NaV_{2}O_{5}$} (1998)
Lemmens, P., Fischer, M., Els, G., Güntherodt, G., Mishchenko, A. S., Weiden, M., ...
Raman scattering in the quarter-filled spin ladder system alpha'-NaV_2O_5 shows in the dimerized singlet ground state ($T \leq T_{SP}=35K$) an unexpected sequence of three magnetic bound states. Our...
Magnetic Bound States in Dimerized Quantum Spin Systems (1998)
Lemmens, P., Fischer, M., Grove, M., Els, G., Güntherodt, G., Weiden, M., ...
Magnetic bound states are a general phenomenon in low dimensional antiferromagnets with gapped singlet states. Using Raman scattering on three compounds as dedicated examples we show how exchange...
NaV_2O_5 as a quarter-filled ladder compound (1998)
Smolinski, H., Gros, C., Weber, W., Peuchert, U., Roth, G., Weiden, M., ...
A new X-ray diffraction study of the one-dimensional spin-Peierls compound \alpha-NaV_2O_5 reveals a centrosymmetric (Pmmn) crystal structure with one type of V site, contrary to the previously...
THE ZERO-GAP Ce3Au3Sb4-x SYSTEM: A TRANSPORT,THERODYNAMIC AND OPTICAL STUDY (1998)
Broderick,S., Vescoli,V., Buschinger,B., Guth,W., Trovarelli,O., Weiden,M., ...
Transport and magnetic properties of new ternary Ce2T3X9-compounds (T = Rh, Ir, X = Al, Ga) (1998)
Buschinger,B., Trovarelli,O., Weiden,M., Geibel,C., Steglich,F.
Magnetic order in Zr-doped CeNiSn (1998)
Buschinger,B., Weiden,M., Trovarelli,O., Hellmann,P., Geibel,C., Steglich,F.
THE GROUND STATE OF NaV2O5 (1998)
Chatterji,T., Liß,K. D., McIntyre,G. J., Weiden,M., Hauptmann,R., Geibel,C.
Development of magnetic order in CeCu2(Si1-xGex)2 as a function of hybridization (1998)
Donnevert,L., Hellmann,P., Thomas,S., Trovarelli,O., Geibel,C., Sparn,G., ...
Breakup of Heavy Fermions on the Brink of "Phase A" in CeCu2Si2 (1998)
Gegenwart,P., Langhammer,C., Geibel,C., Helfrich,R., Lang,M., Sparn,G., ...
Gloos,K., Anders,F. B., Aßmus,W., Buschinger,B., Geibel,C., Kim,J. S., ...
Nonmonotonous evolution of the Kondo temperature in the phase diagram of Ce(Pd1-xCux)2Si2 (1998)
Gomez Berisso,M., Trovarelli,O., Pedrazzini,P., Zwicknagl,G., Geibel,C., Steglich,F., ...
Köppen,M., Pankert,D., Hauptmann,R., Lang,M., Weiden,M., Geibel,C., ...
Magnetic bound states in the quarter-filled ladder system α′-NaV2O5 (1998)
Lemmens,P., Fischer,M., Els,G., Güntherodt,G., Mishchenko,A. S., Weiden,M., ...
Magnetic to superconducting transition in CeCu2Si2 under pressure (1998)
Link,A., Laube,F., Donnevert,L., Sparn,G., Geibel,C., Steglich,F.
High field electron spin resonance experiments on spin-Peierls compounds (1998)
Palme,P., Schmidt,S., Lüthi,B., Boucher,J. P., Weiden,M., Hauptmann,R., ...
Magnetic resonance in the spin-Peierls compound α′-NaV2O5 (1998)
Schmidt,S., Palme,W., Lüthi,B., Weiden,M., Hauptmann,R., Geibel,C.
NaV2O5 as a Quarter-Filled Ladder Compound (1998)
Smolinski,H., Gros,C., Weber,W., Peuchert,U., Roth,G., Weiden,M., ...
Pressure Studies near Quantum Phase Transitions in Strongly Correlated Ce Systems (1998)
Sparn,G., Donnevert,L., Hellmann,P., Horn,R., Laube,F., Link,A., ...
CeCu2Si2 And UBe13: New Questions - Old Answers? (1998)
Steglich,F., Geibel,C., Helfrich,R., Kromer,F., Lang,M., Sparn,G., ...
Metallurgic, structural and magnetic properties of Ce(Pd1-rRhr)2Si2 (1998)
Trovarelli,O., Gómez-Berisso,M., Pedrazzini,P., Bosse,D., Geibel,C., Sereni,J. G., ...
THE OPTICAL PROPERTIES OF RuSi: KONDO INSULATOR OR CONVENTIONAL SEMICONDUCTOR? (1998)
Vescoli,V., Degiorgi,L., Buschinger,B., Guth,W., Geibel,C., Steglich,F.
Magnetic and crystallographic investigations of the inorganic spin-Peierls system α′-NaV2O5 (1998)
Weiden,M., Hauptmann,R., Geibel,C., Köppen,M., Müller,J., Lang,M., ...
Pressure-Induced Local Moment Magnetism in the Nonmagnetic Heavy Fermion Compound Yb2Ni2Al (1998)
Winkelmann,H., Abd-Elmeguid,M. M., Micklitz,H., Sanchez,J. P., Geibel,C., Steglich,F.
THE ZERO-GAP Ce3Au3Sb4-x SYSTEM: A TRANSPORT,THERODYNAMIC AND OPTICAL STUDY (1998)
Broderick, S., Vescoli, V., Buschinger, B., Guth, W., Trovarelli, O., Weiden, M., ...
Transport and magnetic properties of new ternary Ce2T3X9-compounds (T = Rh, Ir, X = Al, Ga) (1998)
Buschinger, B., Trovarelli, O., Weiden, M., Geibel, C., Steglich, F.
Magnetic order in Zr-doped CeNiSn (1998)
Buschinger, B., Weiden, M., Trovarelli, O., Hellmann, P., Geibel, C., Steglich, F.
THE GROUND STATE OF NaV2O5 (1998)
Chatterji, T., Liß, K. D., McIntyre, G. J., Weiden, M., Hauptmann, R., Geibel, C.
Development of magnetic order in CeCu2(Si1-xGex)2 as a function of hybridization (1998)
Donnevert, L., Hellmann, P., Thomas, S., Trovarelli, O., Geibel, C., Sparn, G., ...
Breakup of Heavy Fermions on the Brink of "Phase A" in CeCu2Si2 (1998)
Gegenwart, P., Langhammer, C., Geibel, C., Helfrich, R., Lang, M., Sparn, G., ...
Nonmonotonous evolution of the Kondo temperature in the phase diagram of Ce(Pd1-xCux)2Si2 (1998)
Gomez Berisso, M., Trovarelli, O., Pedrazzini, P., Zwicknagl, G., Geibel, C., Steglich, F., ...
Magnetic bound states in the quarter-filled ladder system α′-NaV2O5 (1998)
Lemmens, P., Fischer, M., Els, G., Güntherodt, G., Mishchenko, A. S., Weiden, M., ...
Magnetic to superconducting transition in CeCu2Si2 under pressure (1998)
Link, A., Laube, F., Donnevert, L., Sparn, G., Geibel, C., Steglich, F.
High field electron spin resonance experiments on spin-Peierls compounds (1998)
Palme, P., Schmidt, S., Lüthi, B., Boucher, J. P., Weiden, M., Hauptmann, R., ...
Magnetic resonance in the spin-Peierls compound α′-NaV2O5 (1998)
Schmidt, S., Palme, W., Lüthi, B., Weiden, M., Hauptmann, R., Geibel, C.
NaV2O5 as a Quarter-Filled Ladder Compound (1998)
Smolinski, H., Gros, C., Weber, W., Peuchert, U., Roth, G., Weiden, M., ...
Pressure Studies near Quantum Phase Transitions in Strongly Correlated Ce Systems (1998)
Sparn, G., Donnevert, L., Hellmann, P., Horn, R., Laube, F., Link, A., ...
CeCu2Si2 And UBe13: New Questions - Old Answers? (1998)
Steglich, F., Geibel, C., Helfrich, R., Kromer, F., Lang, M., Sparn, G., ...
Metallurgic, structural and magnetic properties of Ce(Pd1-rRhr)2Si2 (1998)
Trovarelli, O., Gómez-Berisso, M., Pedrazzini, P., Bosse, D., Geibel, C., Sereni, J. G., ...
THE OPTICAL PROPERTIES OF RuSi: KONDO INSULATOR OR CONVENTIONAL SEMICONDUCTOR? (1998)
Vescoli, V., Degiorgi, L., Buschinger, B., Guth, W., Geibel, C., Steglich, F.
Magnetic and crystallographic investigations of the inorganic spin-Peierls system α′-NaV2O5 (1998)
Weiden, M., Hauptmann, R., Geibel, C., Köppen, M., Müller, J., Lang, M., ...
Pressure-Induced Local Moment Magnetism in the Nonmagnetic Heavy Fermion Compound Yb2Ni2Al (1998)
Winkelmann, H., Abd-Elmeguid, M. M., Micklitz, H., Sanchez, J. P., Geibel, C., Steglich, F.
Point contact studies of the superconducting gap of CeRu2 (1998)
Naidyuk, Y. G., Moskalenko, A. V., Yanson, I. K., Geibel, C.
Point contact studies of the superconducting gap of CeRu2 (1998)
Naidyuk, Y. G., Moskalenko, A. V., Yanson, I. K., Geibel, C.
Magnetic Resonance in the Spin-Peierls compound $\alpha'-NaV_2O_5$ (1997)
Schmidt, S., Palme, W., Lüthi, B., Weiden, M., Hauptmann, R., Geibel, C.
We present results from magnetic resonance measurements for 75-350 GHz in $\alpha$'-NaV$_{2}$O$_{5}$. The temperature dependence of the integrated intensity indicates that we observe transitions in...
Koeppen, M., Pankert, D., Hauptmann, R., Lang, M., Weiden, M., Geibel, C., ...
We present results of high-resolution thermal-expansion and specific-heat measurements on single crystalline alpha'-NaV2O5. We find clear evidence for two almost degenerate phase transitions...
Ando, Yoichi, Boebinger, G. S., Passner, A., Wang, N. L., Geibel, C., Steglich, F., ...
The normal-state Hall coefficient R_H and the in-plane resistivity \rho_{ab} are measured in La-doped Bi_{2}Sr_{2}CuO_{y} (T_c \simeq 13 K) single crystals and La_{2-x}Sr_{x}CuO_{4} thin films by...
Lemmens, P., Fischer, M., Güntherodt, G., Gros, C., Weiden, M., ...
The effect of in-chain and off-chain substitutions on 1D spin fluctuations in the spin-Peierls compound CuGeO_3 has been studied using Raman scattering in order to understand the interplay between...
Experimental evidence for a spin-Peierls-transition in $\alpha'-NaV_2O_5$ (1997)
Weiden, M., Hauptmann, R., Geibel, C., Steglich, F., Fischer, M., Lemmens, P., ...
We present the first measurements of magnetisation and Raman light scattering on $\alpha'-NaV_2O_5$ single crystals. Below 34 K, we observe a pronounced isotropic decrease of the susceptibility...
Preparation and low temperature properties of FeSi-type RuSi (1997)
Buschinger,B., Geibel,C., Diehl,J., Weiden,M, Guth,W., Wildbrett,A., ...
Transport properties of FeSi (1997)
Buschinger,B., Geibel,C., Steglich,F., Mandrus,D., Young,D., Sarrao,J. L., ...
RuSi: metal-semiconductor transition by change of structure (1997)
Buschinger,B., Guth,W., Weiden,M., Geibel,C., Steglich,F., Vescoli,V., ...
The electrodynamic response of heavy-electron materials with magnetic phase transitions (1997)
Degiorigi,L., Thieme,S., Ott,H. R., Dressel,M., Grüner,G., Dalichaouch,Y., ...
Competition between magnetism and superconductivity in CeCu2Si2 (1997)
Feyerherm,R., Amato,A., Geibel,C., Gygax,F. N., Hellmann,P., Heffner,R. H., ...
Substitution effects on spin fluctuations in the spin-Peierls compound CuGeO3 (1997)
Fischer,M., Lemmens,P., Güntherodt,G., Weiden,M., Richter,W., Geibel,C., ...
Magnetic properties of new Ce-T-Mg compounds (T = Ni, Pd) (1997)
Geibel,C., Klinger,U., Weiden,M., Buschinger,B., Steglich,F.
Magnon-magnon interactions in the spin-Peierls compound CuGeO3 (1997)
Gros,C., Wenzel,W., Fledderjohann,A., Lemmens,P., Fischer,M., Güntherodt,G., ...
Cu NQR study of magnetic correlation and superconductivity in a series of Ce1+xCu2+ySi2 (1997)
Ishida,K., Kitaoka,Y., Kashima,K., Asayama,K., Geibel,C., Steglich,F.
Lemmens,P., Fischer,M., Güntherodt,G., Gros,C., Weiden,M., ...
J1-J2 model revisited: Phenomenology of CuGeO3 (1997)
Muthukumar,V. N., Gros,C., Valentí,R., Weiden,M., Geibel,C., Steglich,F., ...
Scaling of the "Cp α T lnT" dependence in Ce systems (1997)
Sereni,J. G., Geibel,C., Berisso,M. G., Hellmann,P., Trovarelli,O., Steglich,F.
Multiple magnetic phase transitions in Ce(Cu1-xNix)2Ge2 (1997)
Sparn,G., Deppe,M., Donnevert,L., Geibel,C., Hellmann,P., Heuser,K., ...
Are heavy-fermion metals Fermi liquids? (1997)
Steglich,F., Gegenwart,P., Helfrich,R., Langhammer,C., Hellmann,P., Donnevert,L., ...
"Non-Fermi-liquid" phenomena in heavy-fermion CeCu2Si2 and CeNi2Ge2 (1997)
Steglich,F., Hellmann,P., Thomas,S., Gegenwart,P., Link,A., Helfrich,R., ...
NMR/ NQR studies of U-123 type heavy fermion compounds (1997)
Tou,H., Kitaoka,Y., Kamatsuka,T., Asayama,K., Geibel,C., Steglich,F., ...
Evolution of magnetism and superconductivity in CeCu2(Si1-xGex)2 (1997)
Trovarelli,O., Weiden,M., Müller-Reisener,R., Gómez-Berisso,M., Gegenwart,P., Deppe,M., ...
Positron Annihilation Study of CeCu2Si2 (1997)
Vasumathi,D., Barbiellini,B., Manuel,A. A., Hoffmann,L., Jarlborg,T., Molder,R., ...
Fermi surface of CeCu2Si2 by 2D angular correlation of positron annihilation radiation (1997)
Vasumathi,D., Barbiellini,B., Manuel,A. A., Hoffmann,L., Jarlborg,T., Molder,R., ...
The crystal structure of CeCu2Ge2 under pressure (1997)
Wassilew-Reul,C., Kunz,M., Hanfland,M., Häusermann,D., Geibel,C., Steglich,F.
Experimental evidence for a spin-Peierls-transition in α' -NaV2O5 (1997)
Weiden,M., Hauptmann,R., Geibel,C., Steglich,F., Fischer,M., Lemmens,P., ...
Magnetic phase diagram of CuGe1-xSixO3 (1997)
Weiden,M., Hauptmann,R., Richter,W., Geibel,C., Hellmann,P., Köppen,M., ...