Spehling, J., Heffner, R. H., Sonier, J. E., Curro, N., Wang, C. H., Hitti, B., ...
The high field superconducting state in CeCoIn5 has been studied by transverse field muon spin rotation measurements with an applied field parallel to the crystallographic c-axis close to the upper...
Quantum criticality in layered CeRhIn_{5-x}Sn_x compared with cubic CeIn$_{3-x}Sn_x (2009)
Donath, J. G., Steglich, F., Bauer, E. D., Ronning, F., Sarrao, J. L., Gegenwart, P.
We report low-temperature thermal-expansion measurements on single crystals of the {\it layered} heavy fermion system \cri ($0.3\leq x \leq 0.6$) and compare it with a previous study on the related...
Hot electron relaxation in a heavy fermion system with tuned doping (2009)
Demsar, J., Kabanov, V. V., Alexandrov, A. S., Lee, H. J., Bauer, E. D., Sarrao, J. L., ...
Femtosecond time-resolved optical spectroscopy was used to systematically study photoexcited carrier relaxation dynamics in the intermediate-valence heavy fermion system Yb1-xLuxAl3 (0 < x < 1)....
Local structure and site occupancy of Cd and Hg substitutions in CeTIn5 (T=Co, Rh, Ir) (2009)
Booth, C. H., Bauer, E. D., Bianchi, A. D., Ronning, F., Thompson, J. D., Sarrao, J. L., ...
The CeTIn5 superconductors (T=Co, Rh, or Ir) have generated great interest due to their relatively Tc's, NFL behavior, and their proximity to AF order and quantum critical points. In contrast to...
Koitzsch, A., Opahle, I., Elgazzar, S., Borisenko, S. V., Geck, J., Zabolotnyy, V. B., ...
We have investigated the low-energy electronic structure of the heavy fermion superconductor CeCoIn5 by angle-resolved photoemission and band structure calculations. We measured the Fermi surface and...
Koitzsch, A., Borisenko, S. V., Inosov, D., Geck, J., Zabolotnyy, V. B., Shiozawa, H., ...
We have investigated the low-energy electronic structure of the heavy fermion superconductor CeCoIn5 by angle-resolved photoemission. We focus on the dispersion and the peak width of the prominent...
Isotropic Quantum Scattering and Unconventional Superconductivity (2009)
Park, Tuson, Sidorov, V. A., Ronning, F., Tokiwa, Y., Lee, H., ...
Superconductivity without phonons has been proposed for strongly correlated electron materials that are tuned close to a zero-temperature magnetic instability of itinerant charge carriers. Near this...
Analysis of the Normal-State Magnetotransport in CeIrIn5 (2009)
Nair, S., Nicklas, M., Sarrao, J. L., Thompson, J. D., Steglich, F., Wirth, S.
We present an analysis of the normal-state magnetotransport in the heavy-fermion superconductor CeIrIn5. The Hall effect and the transverse magnetoresistance in this material do not appear to be...
Magnetotransport in the CeIrIn5 System: The Influence of Antiferromagnetic Fluctuations (2009)
Nair, S., Nicklas, M., Sarrao, J. L., Thompson, J. D., Steglich, F., Wirth, S.
We present an overview of magnetotransport measurements on the heavy-fermion superconductor CeIrIn5. Sensitive measurements of the Hall effect and magnetoresistance are used to elucidate the...
Precursor state to superconductivity in CeIrIn5: Unusual scaling of magnetotransport (2009)
Nair, S., Nicklas, M., Steglich, F., Sarrao, J.L., Thompson, J.D., Schofield, A.J., ...
Quantum criticality in layered CeRhIn5-xSnx compared with cubic CeIn3-xSnx (2009)
Donath, J.D., Steglich, F., Bauer, E.D., Ronning, F., Sarrao, J.L., Gegenwart, P.
Kabanov, V. V., Alexandrov, A. S., Lee, H. J., Bauer, E. D., Sarrao, J. L., Taylor, A. J., ...
Femtosecond time-resolved optical spectroscopy was used to systematically study photoexcited carrier relaxation dynamics in the intermediate-valence heavy-fermion system Yb1-xLuxAl3 (0x1). Given the...
Analysis of the normal state magnetotransport in CeIrIn${_5}$ (2008)
Nair, Sunil, Nicklas, M., Sarrao, J. L., Thompson, J. D., Steglich, F., Wirth, S.
We present an analysis of the normal state magnetotransport in the heavy fermion superconductor CeIrIn${_5}$. The Hall effect and the transverse magnetoresistance in this material do not appear to be...
Magnetotransport in the CeIrIn${_5}$ system: The influence of antiferromagnetic fluctuations (2008)
Nair, Sunil, Nicklas, M., Sarrao, J. L., Thompson, J. D., Steglich, F., Wirth, S.
We present an overview of magnetotransport measurements on the heavy-fermion superconductor CeIrIn$_5$. Sensitive measurements of the Hall effect and magnetoresistance (MR) are used to elucidate the...
The precursor state to superconductivity in CeIrIn${_5}$: Unusual scaling of magnetotransport (2008)
Nair, Sunil, Nicklas, M., Steglich, F., Sarrao, J. L., Thompson, J. D., Schofield, A. J., ...
We present an analysis of the normal-state Hall effect and magnetoresistance in the heavy fermion superconductor CeIrIn${_5}$. It is demonstrated that the modified Kohler's scaling--which relates the...
High Field de Haas - van Alphen Studies of the Fermi Surfaces of LaMIn$_{5}$ (M = Co, Rh, Ir) (2008)
Hall, Donavan, Balicas, Luis, Fisk, Z., Goodrich, R. G., Alver, U., Sarrao, J. L.
We report measurements of the de Haas - van Alphen effect on a series of compounds, LaMIn$_{5}$ (M = Co, Rh, Ir). The results show that each of the Co and Ir Fermi surfaces (FSs) exhibit some...
Itinerant spin excitations near the hidden order transition in URu2Si2 (2008)
Janik, J. A., Zhou, H. D., Balicas, L., MacDougall, G. J., Luke, G. M., ...
By means of neutron scattering we show that the high-temperature precursor to the hidden order state of the heavy fermion superconductor URu$_{2}$Si$_{2}$ exhibits heavily damped incommensurate...
Electronic Duality in Strongly Correlated Matter (2008)
Park, T., Graf, M. J., Boulaevskii, L., Sarrao, J. L., Thompson, J. D.
Superconductivity develops from an attractive interaction between itinerant electrons that creates electron pairs which condense into a macroscopic quantum state--the superconducting state. On the...
Neutron diffraction study of magnetic field induced behavior in the heavy Fermion Ce3CO4Sn13 (2008)
Christianson, A.D., Goremychkin, E.A., Gardher, J.S., Kang, H.J., Chung, J.H., Manuel, R., ...
The specific heat of Ce3Co4Sn13 exhibits a crossover from heavy Fermion behavior with antiferromagnetic correlations at low field to single impurity Kondo behavior above 2 T. We have performed...
Dimensional Crossover of Quantum Critical Behavior in CeCoIn5 (2008)
Donath, J. G., Steglich, F., Bauer, E. D., Sarrao, J. L., Gegenwart, P.
Hall effect measurements in the heavy fermion system CeIrIn5 (2008)
Nair, S., Wirth, S., Nicklas, M., Gladun, A., Steglich, F., Sarrao, J. L., ...
Precursor State to Unconventional Superconductivity in CeIrIn5 (2008)
Nair, S., Wirth, S., Nicklas, M., Sarrao, J. L., Thompson, J. D., Fisk, Z., ...
Tuning the Pressure-Induced Superconducting Phase in Doped CeRhIn5 (2008)
Ferreira, L. M., Park, T., Sidorov, V., Nicklas, M., Bittar, E. M., Lora-Serrano, R., ...
A precursor state to unconventional superconductivity in CeIrIn${_5}$ (2007)
Nair, Sunil, Wirth, S., Nicklas, M., Sarrao, J. L., Thompson, J. D., Fisk, Z., ...
We present sensitive measurements of the Hall effect and magnetoresistance in CeIrIn${_5}$ down to temperatures of 50 mK and magnetic fields up to 15 T. The presence of a low temperature coherent...
Antiferromagnetic fluctuations and the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 (2007)
Nicklas, M., Miclea, C. F., Sarrao, J. L., Thompson, J. D., Sparn, G., Steglich, F.
The heavy-fermion superconductor CeCoIn5 is the first material, where different experimental probes show strong evidence pointing to the realization of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)...
Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in CeCoIn_5 (2007)
Park, W. K., Sarrao, J. L., Thompson, J. D., Greene, L. H.
Differential conductance spectra are obtained from nanoscale junctions on the heavy-fermion superconductor CeCoIn$_5$ along three major crystallographic orientations. Consistency and reproducibility...
Quantifying structural damage from self-irradiation in a plutonium superconductor (2007)
Booth, C. H., Bauer, E. D., Daniel, M., Wilson, R. E., Mitchell, J. N., Morales, L. A., ...
The 18.5 K superconductor PuCoGa5 has many unusual properties, including those due to damage induced by self-irradiation. The superconducting transition temperature decreases sharply with time,...
Ohishi, K., Heffner, R. H., Morris, G. D., Bauer, E. D., Graf, M. J., ...
We have measured the temperature dependence and magnitude of the superfluid density $\rho_{\rm s}(T)$ via the magnetic field penetration depth $\lambda(T)$ in PuCoGa$_5$ (nominal critical temperature...
Point-contact Andreev reflection spectroscopy of heavy-fermion-metal/superconductor junctions (2007)
Park, W. K., Stalzer, H., Sarrao, J. L., Thompson, J. D., Pham, L. D., Fisk, Z., ...
Our previous point-contact Andreev reflection studies of the heavy-fermion superconductor CeCoIn$_5$ using Au tips have shown two clear features: reduced Andreev signal and asymmetric background...
Dimensional crossover of quantum critical behavior in CeCoIn$_5$ (2007)
Donath, J. G., Gegenwart, P., Steglich, F., Bauer, E. D., Sarrao, J. L.
The nature of quantum criticality in CeCoIn$_5$ is studied by low-temperature thermal expansion $\alpha(T)$. At the field-induced quantum critical point at H=5 T a crossover scale $T^\star\approx...
T. Mito, M. Nakamura, M. Otani, T. Koyama, S. Wada, ...
Journal article
Pressure effect on antiferromagnetism in CeRhIn5-xSnx studied by thermal expansion (2007)
Donath, J. G., Gegenwart, P., Steglich, F., Bauer, E. D., Sarrao, J. L.
Antiferromagnetic fluctuations and the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 (2007)
Nicklas, M., Miclea, C. F., Sarrao, J. L., Thompson, J. D., Sparn, G., Steglich, F.
Quantifying structural damage from self-irradiation in a plutonium superconductor (2006)
Booth, C.H., Bauer, E.D., Daniel, M., Wilson, R.E., Mitchell, J.N., Morales, L.A., ...
Time-Resolved Quasiparticle Dynamics in the Spin-Density-Wave State (2006)
Chia, Elbert E. M., Zhu, Jian-Xin, Lee, H. J., Hur, Namjung, Moreno, N. O., Averitt, R. D., ...
Time-resolved photoinduced reflectivity is measured in the spin-density-wave (SDW) phase using itinerant antiferromagnets UMGa$_{5}$ (M=Ni, Pt). For UNiGa$_{5}$ [$T_{N}$=85 K,...
FFLO State and Peak Effect Dynamics in CeCoIn_5: Magnetization Studies (2006)
Gratens, X., Ferreira, L. Mendonca, Kopelevich, Y., Oliveira Jr., N. F., Pagliuso, P. G., Movshovich, R., ...
Magnetization measurements were performed on CeCoIn_5 at temperature down to 30 mK with the magnetic field applied in three different orientations: parallel, near parallel ($\sim$ 10$^{0}$ rotated)...
Low temperature behavior of the heavy Fermion Ce3Co4Sn13 (2006)
Christianson, A. D., Gardner, J. S., Kang, H. J., Bobev, S., Sarrao, J. L., ...
The compound Ce3Co4Sn13 is an extremely heavy cubic heavy fermion system with a low temperature electronic specific heat of order ~4 J/mol-K2. If the compound is nonmagnetic, it would be one of the...
Microscopic evidence for field-induced magnetism in CeCoIn$_5$ (2006)
Urbano, R. R., Curro, N. J., Thompson, J. D., Sarrao, J. L., Vorontsov, A. B., ...
We present NMR data in the normal and superconducting states of CeCoIn$_5$ for fields close to $H_{\rm c2}(0)=11.8$ T in the $ab$ plane. Recent experiments identified a first-order transition from...
Quasiparticle Relaxation Across a Spin Gap in the Itinerant Antiferromagnet UNiGa5 (2006)
Chia, Elbert E. M., Lee, H. J., Hur, Namjung, Bauer, E. D., Durakiewicz, T., Averitt, R. D., ...
Ultrafast time-resolved photoinduced reflectivity is measured for the itinerant antiferromagnet UNiGa$_{5}$ ($T_{N} \approx$85 K) from room temperature to 10 K. The relaxation time $\tau$ shows a...
Anisotropic intermediate valence in Yb2Rh3Ga9 (2006)
Christianson, A.D., Lawrence, J.M., Lobos, A.M., Aligia, A.A., Bauer, E.D., Moreno, N.O., ...
We report measurements of the inelastic neutron scattering spectrum for the anisotropic intermediate valence system Yb2Rh3Ga9. Calculations for the Anderson impurity model with crystal field terms...
The Missing Link: Magnetism and Superconductivity (2006)
Burch, K. S., Dordevic, S. V., Mena, F. P., Sarrao, J. L., Jeffries, J. R., ...
The effect of magnetic moments on superconductivity has long been a controversial subject in condensed matter physics. While Matthias and collaborators experimentally demonstrated the destruction of...
Localized Excitation in the Hybridisation Gap in YbAl3 (2006)
Christianson, A.D., Fanelli, V.R., Lawrence, J.M., Goremychkin, E.A., Osborn, R., Bauer, E.A., ...
The intermediate valence compound YbAl3 exhibits a broad magnetic excitation with characteristic energy E1 ~ 50meV, of order of the Kondo energy (TK ~ 600-700K). In the low temperature (T < Tcoh ~...
Localized excitation in the hybridization gap in YbAl3 (2006)
Christianson, A.D., Fanelli, V.R., Lawrence, J.M., Goremychkin, E.A., Osborn, R., Bauer, E.D., ...
The intermediate valence compound YbAl3 exhibits a broad magnetic excitation in the inelastic neutron scattering spectrum with characteristic energy E150 meV, equal to the Kondo energy (TK~600–700...
Capan, C., Balicas, L., Murphy, T. P., Palm, E. C., Movshovich, R., Hall, D., ...
We report a comparative study of magnetoresistance and de-Haas-van-Alphen (dHvA) effect in CeIrIn$_5$ in the field range of 20T to 33T and between 0.03K and 1K. The metamagnetic transition is marked...
Hidden Magnetism and Quantum Criticality in the Heavy Fermion Superconductor CeRhIn5 (2006)
Park, Tuson, Ronning, F., Yuan, H. Q., Salamon, M. B., Movshovich, R., Sarrao, J. L., ...
With understood exceptions, conventional superconductivity does not coexist with long-range magnetic order[1]. In contrast, unconventional superconductivity develops near a boundary separating...
Shiotani, Y., Sarrao, J. L., Zheng, Guo-qing
In order to gain insights into the origin of colossal magneto-resistance (CMR) in manganese oxides, we performed a ^{139}La NMR study in the double-layered compound La_{1.2}Sr_{1.8}Mn_2O_7. We find...
Pressure Study of Quantum Criticality in CeCoIn5 (2006)
Ronning, F., Capan, C., Bauer, E. D., Thompson, J. D., Sarrao, J. L., Movshovich, R.
We report resistivity measurements in the normal state of CeCoIn5 down to 40 mK and simultaneously in magnetic fields up to 9 T in the [001] crystallographic direction and under pressures up to 1.3...
Localized excitation in the hybridization gap in YbAl3 (2006)
Christianson, A D, Fanelli, V R, Lawrence, J M, Goremychkin, E A, Osborn, R, Bauer, E D, ...
Pressure Dependence of the Fulde-Ferrell-Larkin-Ovchinnikov State in CeCoIn5 (2006)
Miclea, C. F., Nicklas, M., Parker, D., Maki, K., Sarrao, J. L., Thompson, J. D., ...
Pressure effect on superconductivity in CeCoIn5-xSnx studied by thermal expansion (2006)
Donath, J. G., Gegenwart, P., Küchler, R., Oeschler, N., Steglich, F., Bauer, E. D., ...
Nano-magnetic droplets and implications to orbital ordering in La1-xSrxCoO3 (2005)
Phelan, D., Louca, Despina, Rosenkranz, S., Qiu, Y., Chupas, P. J., ...
Inelastic cold neutron scattering on LaCoO3 provided evidence for a distinct low energy excitation at 0.6 meV coincident with the thermally induced magnetic transition. Coexisting strong...
Slow spin-glass and fast spin-liquid components in quasi-two-dimensional La2(Cu,Li)O4 (2005)
Chen, Y., Bao, Wei, Qiu, Y., Lorenzo, J. E., Sarrao, J. L., Ho, D. L., ...
In conventional spin glasses, magnetic interaction is not strongly anisotropic and the entire spin system is believed to be frozen below the spin-glass transition temperature. In La2Cu0.94Li0.06O4,...
Novel Coexistence of Superconductivity with Two Distinct Magnetic Orders (2005)
Christianson, A. D., Llobet, A., Bao, Wei, Gardner, J. S., Swainson, I. P., Lynn, J. W., ...
The heavy fermion Ce(Rh,Ir)In5 system exhibits properties that range from an incommensurate antiferromagnet on the Rh-rich end to an exotic superconductor on the Ir-rich end of the phase diagram. At...
Superconductivity in Actinide Materials (2005)
Thompson, J. D., Sarrao, J. L., Curro, N. J., Bauer, E. D., Morales, L. A., Wastin, F., ...
Actinide materials play a special role in condensed matter physics, spanning behaviours of itinerant d-electron and localized 4f-electron materials. An intermediate state, found notably in Pu-based...
Evolution of the heavy fermion state in Ce2IrIn8 (2005)
Heffner, R. H., Morris, G. D., Bauer, E. D., Sarrao, J. L., Thompson, J. D., MacLaughlin, D. E., ...
We report muon spin rotation Knight shift and susceptibility studies for 1 T applied field along the crystalline c- and a-axes of the heavy fermion compound Ce2IrIn8. Below a characteristic...
Shiotani, Y, Sarrao, J L, Zheng, Guo-qing
In order to gain insights into the origin of colossal magnetoresistance (CMR) in manganese oxides, we performed a La-139 NMR study in the double-layered compound La1.2Sr1.8Mn2O7. We find that above...
Silhanek, A. V., Jaime, M., Harrison, N., Fanelli, V., Batista, C. D., Amitsuka, H., ...
We report measurements and analysis of the specific heat and magnetocaloric effect at the phase boundary into the single magnetic field-induced phase (phase II) of U(Ru{0.96}Rh{0.04})2Si2, which...
Allen, J. W., Ast, C. R., Höchst, H., Sarrao, J. L., ...
We report angle resolved photoemission (ARPES) spectra of $\eta$-Mo$_4$O$_{11}$, a layered metal that undergoes two charge density wave (CDW) transitions at 109 K and 30 K. We have directly observed...
Anisotropic intermediate valence in Yb2M3Ga9 (M = Rh, Ir) (2005)
Christianson, A. D., Lawrence, J. M., Lobos, A. M., Aligia, A. A., Bauer, E. D., Moreno, N. O., ...
The intermediate valence compounds Yb2M3Ga9 (M = Rh, Ir) exhibit an anisotropic magnetic susceptibility. We report measurements of the temperature dependence of the 4f occupation number, nf(T), for...
Anisotropic intermediate valence in Yb2M3Ga9 (M = Rh, Ir) (2005)
Christianson, A.D., Lawrence, J.M., Lobos, A.M., Aligia, A.A., Bauer, E.D., Moreno, N.O., ...
Localized excitation in the hybridization gap in YbAl3 (2005)
Christianson, A. D., Lawrence, J. M., Goremychkin, E. A., Osborn, R., Bauer, E. D., Sarrao, J. L., ...
The intermediate valence compound YbAl3 exhibits a broad magnetic excitation with characteristic energy E1 ~ 50meV, of order of the Kondo energy (TK ~ 600-700K). In the low temperature (T < Tcoh ~...
c-axis magnetotransport in CeCoIn$_{5}$ (2005)
Malinowski, A., Hundley, M. F., Capan, C., Ronning, F., Movshovich, R., Moreno, N. O., ...
We present the results of out-of-plane electrical transport measurements on the heavy fermion superconductor CeCoIn$_{5}$ at temperatures from 40 mK to 400 K and in magnetic field up to 9 T. For $T $...
Partial spin freezing in the quasi-two-dimensional La2(Cu,Li)O4 (2005)
Chen, Y., Bao, Wei, Qiu, Y., Lorenzo, J. E., Sarrao, J. L., Ho, D. L., ...
In conventional spin glasses, the magnetic interaction is not strongly anisotropic and the entire spin system freezes at low temperature. In La2(Cu,Li)O4, for which the in-plane exchange interaction...
Crystal-field effects in the mixed-valence compounds Yb2M3Ga9 (M= Rh, Ir) (2005)
Moreno, N. O., Lobos, A., Aligia, A. A., Bauer, E. D., Bobev, S., Fritsch, V., ...
Magnetic susceptibility, heat capacity, and electrical resistivity measurements have been carried out on single crystals of the intermediate valence compounds Yb2Rh3Ga9 and Yb2Ir3Ga9. These...
Urbano, R. R., Pagliuso, P. G., Rettori, C., Schlottmann, P., Sarrao, J. L., Bianchi, A., ...
The local environment of Eu$^{2+}$ ($4f^{7}$, $S=7/2$) in Ca$_{1-x}$Eu$_{x}$B$_{6}$ ($0.003\leqslant x\leqslant 1.00$) is investigated by means of electron spin resonance (ESR). For $x\lesssim 0.003$...
Perturbing the superconducting planes in CeCoIn5 by Sn substitution (2005)
Daniel, M., Bauer, E.D., Booth, C.H., Cornelius, A.L., Pagliuso, P.G., ...
Antiferromagnetism in Pr3In: Singlet/triplet physics with frustration (2004)
Christianson, A.D., Lawrence, J.M., Zarestky, J.L., Suzuki, H., Thompson, J.D., Hundley, M.F., ...
Antiferromagnetism in Pr3In: Singlet/triplet physics with frustration (2004)
Christianson, A. D., Lawrence, J. M., Zarestky, J. L., Suzuki, H., Thompson, J. D., Hundley, M. F., ...
We present neutron diffraction, magnetic susceptibility and specific heat data for a single-crystal sample of the cubic (Cu3Au structure) compound Pr3In. This compound is believed to have a singlet...
High magnetic field thermal-expansion and elastic properties of CeRhIn$_5$ (2004)
Correa, V. F., Okraku, W. E., Betts, J. B., Migliori, A., Sarrao, J. L., Lacerda, A. H.
We report high magnetic field thermal-expansion and magnetostriction results on CeRhIn$_5$ single crystals. Several transitions, both first and second order, are observed when the field is applied...
Ronning, F., Capan, C., Bianchi, A., Movshovich, R., Lacerda, A., Hundley, M. F., ...
We report a systematic study of high magnetic field specific heat and resistivity in single crystals of CeCoIn_5 for the field oriented in the basal plane (H//ab) of this tetragonal heavy fermion...
Bauer, E. D., Capan, C., Ronning, F., Movshovich, R., Thompson, J. D., Sarrao, J. L.
Measurements of specific heat and electrical resistivity in magnetic fields up to 9 T along [001] and temperatures down to 50 mK of Sn-substituted CeCoIn5 are reported. The maximal -ln(T) divergence...
Park, Tuson, Sidorov, V. A., Sarrao, J. L., Thompson, J. D.
The mixed-valence (MV) compound YbInCu4 was investigated by electrical resistivity and ac specific heat at low temperatures and high pressures. At atmospheric pressure, its Kadowaki-Woods (KW) ratio,...
High pressure investigation of the heavy-fermion antiferromagnet U_3Ni_5Al_19 (2004)
Bauer, E. D., Sidorov, V. A., Bobev, S., Mixson, D. J., Thompson, J. D., Sarrao, J. L., ...
Measurements of magnetic susceptibility, specific heat, and electrical resistivity at applied pressures up to 55 kbar have been carried out on single crystals of the heavy-fermion antiferromagnet...
Point-Contact Spectroscopy of the Heavy-Fermion Superconductor CeCoIn$_5$ (2004)
Park, W. K., Greene, L. H., Sarrao, J. L., Thompson, J. D.
The dynamic conductance of the heavy-fermion superconductor CeCoIn$_5$ is measured by point-contact spectroscopy as a function of temperature from 60 K down to 400 mK. The contact between the gold...
Anomalous critical behavior near the quantum critical point of a hole-doped La2CuO4 (2004)
Chen, Y., Bao, Wei, Lorenzo, J. E., Stunault, A., Sarrao, J. L., Park, S., ...
The Landau-Ginzburg-Wilson paradigm for critical phenomena is spectacularly successful whenever the critical temperature is finite and all fluctuation modes, with characteristic energies much smaller...
Solid state Pomeranchuk effect (2004)
Continentino, M. A., Ferreira, A. S., Pagliuso, P. G., Rettori, C., Sarrao, J. L.
Recently we have shown that $YbInCu_4$ and related compounds present a solid state Pomeranchuk effect. These systems have a first order volume transition where a local moment phase coexists with a...
Yamaguchi, N., Kan, H., Kitaoka, Y., Sarrao, J. L., Pagliuso, P. G., ...
We present a systematic ^{115}In NQR study on the heavy fermion compounds CeRh_{1-x}Ir_xIn_5 (x=0.25, 0.35, 0.45, 0.5, 0.55 and 0.75). The results provide strong evidence for the microscopic...
Two superconducting phases in CeRh1-xIrxIn5 (2004)
Nicklas,M., Sidorov,V. A., Borges,H. A., Pagliuso,P. G., Sarrao,J. L., Thompson,J. D.
Local structure around Sn in CeCoIn5-xSnx (2004)
Daniel, M., Booth, C.H., Cornelius, A.L., Bauer, E.D., Sarrao, J.L.
Two Superconducting Phases in CeRh_1-xIr_xIn_5 (2004)
Nicklas, M., Sidorov, V. A., Borges, H. A., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D.
Pressure studies of CeRh_1-xIr_xIn_5 indicate two superconducting phases as a function of x, one with T_c >= 2 K for x < 0.9 and the other with T_c < 1.2 K for x > 0.9. The higher T_c phase, phase-1,...
Thermal Expansion in YbGaGe (2004)
Bobev, Svilen, Williams, Darrick J., Thompson, J. D., Sarrao, J. L.
Thermal expansion and magnetic susceptibility measurements as a function of temperature are reported for YbGaGe. Despite the fact that this material has been claimed to show zero thermal expansion...
Compressibility of $Ce M In_5$ and $Ce_2 M In_8$ (M = Rh, Ir and Co) Compounds (2004)
Kumar, Ravhi S., Cornelius, A. L., Sarrao, J. L.
The lattice parameters of the tetragonal compounds Ce$M$In$_{5}$ and Ce$_{2}M$In$_{8}$($M=$Rh, Ir and Co) have been studied as a function of pressure up to 15 GPa using a diamond anvil cell under...
Heat capacity of Ce2RhIn8 under hydrostatic pressure (2004)
Lengyel,E., Sarrao,J. L., Sparn,G., Steglich,F., Thompson,J. D.
Park, Tuson, Nussinov, Z., Hazzard, K. R. A., Sidorov, V. A., Balatsky, A. V., Sarrao, J. L., ...
The low-frequency dielectric response of hole-doped insulators La_{2}Cu_{1-x}Li_{x}O_{4} and La_{2-x}Sr_{x}NiO_{4} shows a large dielectric constant \epsilon ^{'} at high temperature and a step-like...
X-ray absorption studies of the local structure and f-level occupancy in CeIr(1-x)Rh(x)In(5) (2004)
Daniel, M., Booth, C.H., Cornelius, A.L., Pagliuso, P.G., Sarrao, J.L., ...
Non-Fermi Liquid behavior in CeIrIn$_5$ near a metamagnetic transition (2004)
Capan, C., Bianchi, A., Ronning, F., Lacerda, A., Thompson, J. D., Pagliuso, P. G., ...
We present specific heat and resistivity study of CeIrIn5 in magnetic fields up to 17 T and temperature down to 50 mK. Both quantities were measured with the magnetic field parallel to the c-axis (H...
Christianson, A. D., Bauer, E. D., Lawrence, J. M., Riseborough, P. S., Moreno, N. O., Pagliuso, P. G., ...
We have measured the crystalline electric field (CEF) excitations of the CeMIn5 (M = Co, Rh, Ir) series of heavy fermion superconductors by means of inelastic neutron scattering. Fits to a CEF model...
Correa, V. F., Tung, R., Hollen, S. M., Pagliuso, P. G., Moreno, N. O., Lashley, J. C., ...
We report thermal-expansion and magnetostriction results on Ce$_{0.6}$La$_{0.4}$RhIn$_5$ single crystals. This particular La concentration ($x_c \sim$ 0.4) corresponds to the critical one at which...
Anomalous f-electron Hall Effect in the Heavy-Fermion System CeTIn$_{5}$ (T = Co, Ir, or Rh) (2004)
Hundley, M. F., Malinwoski, A., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D.
The in-plane Hall coefficient $R_{H}(T)$ of CeRhIn$_{5}$, CeIrIn$_{5}$, and CeCoIn$_{5}$ and their respective non-magnetic lanthanum analogs are reported in fields to 90 kOe and at temperatures from...
Crystal Field Effects in CeIrIn5 (2004)
Christianson, A. D., Lawrence, J. M., Riseborough, P. S., Moreno, N. O., Pagliuso, P. G., Bauer, E. D., ...
In this work, we study crystalline electric field effects in the heavy fermion superconductor CeIrIn5. We observe two regions of broad magnetic response in the inelastic neutron scattering spectra at...
Crystalline Electric Field Excitations in the Heavy Fermion Superconductor CeCoIn_5 (2004)
Bauer, E. D., Christianson, A. D., Lawrence, J. M., Goremychkin, E. A., Moreno, N. O., Curro, N. J., ...
The crystalline electric field (CEF) energy level scheme of the heavy fermion superconductor CeCoIn_5 has been determined by means of inelastic neutron scattering (INS). Peaks observed in the INS...
Capan, C., Bianchi, A., Movshovich, R., Christianson, A. D., Malinowski, A., Hundley, M. F., ...
We have measured the thermal conductivity of the heavy-fermion superconductor CeCoIn_5 in the vicinity of the upper critical field, with the magnetic field perpendicular to the c axis. Thermal...
Effect of pressure on the ferromagnetic compound CeCu2Ga2 (2004)
Nicklas,M., Moreno,N. O., Borges,H. A., Bauer,E. D., Sarrao,J. L., Thompson,J. D.
Magnetic structure of CeRhIn5 as a function of pressure and temperature (2004)
Llobet,A., Gardner,J. S., Moshopoulou,E. G., Nicklas,M., Bao,W., ...
Heat capacity of Ce2RhIn8 under hydrostatic pressure (2004)
Lengyel, E., Sarrao, J. L., Sparn, G., Steglich, F., Thompson, J. D.
Two superconducting phases in CeRh1-xIrxIn5 (2004)
Nicklas, M., Sidorov, V. A., Borges, H. A., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D.
Effect of pressure on the ferromagnetic compound CeCu2Ga2 (2004)
Nicklas, M., Moreno, N. O., Borges, H. A., Bauer, E. D., Sarrao, J. L., Thompson, J. D.
Magnetic structure of CeRhIn5 as a function of pressure and temperature (2004)
Llobet, A., Gardner, J. S., Moshopoulou, E. G., Nicklas, M., Bao, W., ...
Phase Inhomogeneity of the Itinerant Ferromagnet MnSi at High Pressures (2003)
Yu, W., Zamborszky, F., Thompson, J. D., Sarrao, J. L., Torelli, M. E., Fisk, Z., ...
The pressure induced quantum phase transition of the weakly itinerant ferromagnet MnSi is studied using zero-field $^{29}Si$ NMR spectroscopy and relaxation. Below $P^*\approx 1.2GPa$, the intensity...
Photoemission and the Electronic Structure of PuCoGa5 (2003)
Joyce, J. J., Wills, J. M., Durakiewicz, T., Butterfield, M. T., Guziewicz, E., Sarrao, J. L., ...
The electronic structure of the first Pu based superconductor PuCoGa5 is explored using photoelectron spectroscopy and a novel theoretical scheme. Exceptional agreement between calculation and...
Investigation of Anderson lattice behavior in Yb1-xLuxAl3 (2003)
Bauer, E.D., Booth, C.H., Lawrence, J.M., Hundley, M.F., Sarrao, J.L., Thompson, J.D., ...
Angle-resolved photoemission study of USb2: the 5f band structure (2003)
Guziewicz, E., Durakiewicz, T., Butterfield, M. T., Olson, C. G., Joyce, J. J., Arko, A. J., ...
Single crystal antiferromagnetic USb2 was studied at 15K by angle-resolved photoemission with an overall energy resolution of 24 meV. The measurements unambiguously show the dispersion of extremely...
Evidence for the FFLO state in CeCoIn_5 from penetration depth measurements (2003)
Martin, C., Agosta, C. C., Tozer, S. W., Radovan, H. A., Palm, E. C., Murphy, T. P., ...
We report penetration depth and resistivity measurements on the heavy fermion superconductor CeCoIn_5 using a self resonant tank circuit based on a tunnel diode oscillator. For magnetic fields...
Using elastic and inelastic neutron scattering, we investigated the evolution of the local atomic structure and lattice dynamics of La(1-x)Sr(x)CoO3 (x=0-0.5) as it crosses over with x from an...
Uniaxial Pressure Effects on CeIrIn5 and CeCoIn5 Studied by Low-Temperature Thermal Expansion (2003)
Oeschler,N., Gegenwart,P., Lang,M., Movshovich,R., Sarrao,J. L., Thompson,J. D., ...
Ultrafast quasiparticle relaxation dynamics in normal metals and heavy fermion materials (2003)
Ahn, K. H., Graf, M. J., Trugman, S. A., Demsar, J., Averitt, R. D., Sarrao, J. L., ...
We present a detailed theoretical study of the ultrafast quasiparticle relaxation dynamics observed in normal metals and heavy fermion materials with femtosecond time-resolved optical pump-probe...
Novel dynamic scaling regime in hole-doped La2CuO4 (2003)
Bao, Wei, Chen, Y., Qiu, Y., Sarrao, J. L.
Only 3% hole doping by Li is sufficient to suppress the long-range 3-dimensional (3D) antiferromagnetic order in La2CuO4. The spin dynamics of such a 2D spin liquid state at T
Light, B. E., Kumar, Ravhi S., Cornelius, A. L., Pagliuso, P. G., Sarrao, J. L.
In heavy fermion materials superconductivity tends to appear when long range magnetic order is suppressed by chemical doping or applying pressure. Here we report heat capacity measurements on diluted...
Magnetic structure of CeRhIn_5 as a function of pressure and temperature (2003)
Llobet, A., Gardner, J. S., Moshopoulou, E. G., Nicklas, M., Bao, W., ...
We report magnetic neutron-diffraction and electrical resistivity studies on single crystals of the heavy-fermion antiferromagnet CeRhIn$_{5}$ at pressures up to 2.3 GPa. These experiments show that...
Variable-range-hopping conductivity of half-doped bilayer manganite LaSr$_{2}$Mn$_{2}$O$_{7}$ (2003)
Chen, X. J., Zhang, C. L., Gardner, J. S., Sarrao, J. L., Almasan, C. C.
We report measurements of in-plane $\rho_{ab}$ and out-of-plane $\rho_{c}$ resistivities on a single crystal of the half-doped bilayer manganite LaSr$_{2}$Mn$_{2}$O$_{7}$. In the temperature $T$...
Quasiparticle relaxation dynamics in heavy fermion compounds (2003)
Demsar, J., Averitt, R. D., Ahn, K. H., Graf, M. J., Trugman, S. A., Kabanov, V. V., ...
We present the first femtosecond studies of electron-phonon (e-ph) thermalization in heavy fermion compounds. The e-ph thermalization time tau_{ep} increases below the Kondo temperature by more than...
Magnetism and unconventional superconductivity in CenMmIn3n+2m heavy-fermion crystals (2003)
Thompson,J. D., Nicklas,M., Bianchi,A., Movshovich,R., Llobet,A., Bao,W., ...
Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in CeCoIn5 (2003)
Bianchi, A., Movshovich, R., Capan, C., Lacerda, A., Pagliuso, P. G., Sarrao, J. L.
We report specific heat measurements of the heavy fermion superconductor CeCoIn5 in the vicinity of the superconducting critical field H_{c2}, with magnetic field in the [110], [100], and [001]...
Small-polaron hopping conductivity in bilayer manganite La$_{1.2}$Sr$_{1.8}$Mn$_{2}$O$_{7}$ (2003)
Chen, X. J., Zhang, C. L., Almasan, C. C., Gardner, J. S., Sarrao, J. L.
We report anisotropic resistivity measurements on a La$_{1.2}$Sr$_{1.8}$Mn$_{2}$O$_{7}$ single crystal over a temperature $T$ range from 2 to 400 K and in magnetic fields $H$ up to 14 T. For $T\geq...
Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$ (2003)
Bianchi, A., Movshovich, R., Vekhter, I., Pagliuso, P. G., Sarrao, J. L.
We measured specific heat and resistivity of heavy fermion CeCoIn5 between the superconducting critical field $H_{c2} = 5 T$ and 9 T, with field in the [001] direction, and at temperatures down to...
Magnetism and superconductivity in CeRh_{1-x}Ir_xIn_5 heavy fermion materials (2003)
Morris, G. D., Heffner, R. H., Sonier, J. E., MacLaughlin, D. E., Bernal, O. O., Nieuwenhuys, G. J., ...
We report on zero-field muon spin relaxation studies of cerium based heavy-fermion materials CeRh_{1-x}Ir_xIn_5. In the superconducting x=0.75 and 1 compositions muon spin relaxation functions were...
Magnetic ordering in the pressure-stabilized high-temperature phase of YbInCu4 (2003)
Mito, Takeshi, Koyama, T., Shimoide, M., Wada, Shinji, Muramatsu, T., Kobayashi, T. C., ...
Uniaxial Pressure Effects on CeIrIn5 and CeCoIn5 Studied by Low-Temperature Thermal Expansion (2003)
Oeschler, N., Gegenwart, P., Lang, M., Movshovich, R., Sarrao, J. L., Thompson, J. D., ...
Magnetism and unconventional superconductivity in CenMmIn3n+2m heavy-fermion crystals (2003)
Thompson, J. D., Nicklas, M., Bianchi, A., Movshovich, R., Llobet, A., Bao, W., ...
First-Order Superconducting Phase Transition in CeCoIn5 (2002)
Bianchi,A., Movshovich,R., Oeschler,N., Gegenwart,P., Steglich,F., Thompson,J. D., ...
The superconducting phase transition in heavy fermion CeCoIn5 (T-c=2.3 K in zero field) becomes first order when the magnetic field Hparallel to[001] is greater than 4.7 T, and the transition...
Thompson, J. D., Nicklas, M., Bianchi, A., Movshovich, R., Llobet, A., Bao, W., ...
We review magnetic, superconducting and non-Fermi-liquid properties of the structurally layered heavy-fermion compounds Ce$_n$M$_m$In$_{3n+2m}$ (M=Co, Rh, Ir). These properties suggest d-wave...
Anisotropic Elastic Properties of CeRhIn$_{5}$ (2002)
Kumar, Ravhi S., Kohlmann, H., Light, B. E., Cornelius, A. L., Raghavan, V., Darling, T. W., ...
The structure of the quasi two dimensional heavy fermion antiferromagnet CeRhIn$_{5}$ has been investigated as a function of pressure up to 13 GPa using a diamond anvil cell under both hydrostatic...
de Haas - van Alphen measurements on CeRhIn5 under pressure (2002)
Hall, Donavan, Tozer, S. W., Palm, E. C., Murphy, T. P., Goodrich, R. G., Sarrao, J. L.
Measurements of the de Haas - van Alphen effect have been carried out on the heavy fermion anti-ferromagnet CeRhIn5 at temperatures between 25 mK and 500 mK under pressure. We present some...
Unconventional superconductivity in CeCoIn5 - a high pressure study (2002)
Sparn,G., Borth,R., Lengyel,E., Pagliuso,P. G., Sarrao,J. L., Steglich,F., ...
The hybridization between a periodic lattice of almost localized (core like) electrons (of lanthanides or actinides) and band electrons has challenged researchers for over 30 years to unravel its...
Chia, Elbert E. M., Van Harlingen, D. J., Salamon, M. B., Yanoff, Brian D., Bonalde, I., Sarrao, J. L.
We report measurements of the magnetic penetration depth $\lambda$ in single crystals of CeCoIn$_{5}$ down to $\sim$0.14 K using a tunnel-diode based, self-inductive technique at 28 MHz. While the...
Magnetic structure of antiferromagnetic NdRhIn5 (2002)
Chang, S., Pagliuso, P. G., Bao, Wei, Gardner, J. S., Swainson, I. P., Sarrao, J. L., ...
The magnetic structure of antiferromagnetic NdRhIn5 has been determined using neutron diffraction. It has a commensurate antiferromagnetic structure with a magnetic wave vector (1/2,0,1/2) below T_N...
CeCoIn5 - a quantum critical superfluid (2002)
Ozcan, S., Broun, D. M., Morgan, B., Haselwimmer, R. K. W., Waldram, J. R., Sarrao, J. L., ...
We have made the first complete measurements of the London penetration depth $\lambda(T)$ of CeCoIn5, a quantum-critical metal where superconductivity arises from a non-Fermi-liquid normal state....
Intersite coupling effects in a Kondo lattice (2002)
Nakatsuji, S., Yeo, S., Balicas, L., Fisk, Z., Schlottmann, P., Pagliuso, P. G., ...
The La dilution of the Kondo lattice CeCoIn_5 is studied. The scaling laws found for the magnetic susceptibility and the specific heat reveal two well-separated energy scales, corresponding to the...
Low Frequency Spin Dynamics in the CeMIn_5 Materials (2002)
Curro, N. J., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D., Kos, S., Abanov, Ar., ...
We measure the spin lattice relaxation of the In(1) nuclei in the CeMIn_5 materials, extract quantitative information about the low energy spin dynamics of the lattice of Ce moments in both CeRhIn_5...
Neutron scattering study of cyrstal fields in CeRhIn5 (2002)
Christianson, A. D., Lawrence, J. M., Pagliuso, P. G., Moreno, N. O., Sarrao, J. L., Thompson, J. D., ...
Neutron scattering results for the tetragonal compound CeRhIn5 give evidence for two crystal field (CF) excitations at 6.9 and 23.6 meV. The scattering can be fit assuming a set of CF parameters...
Magnetism and superconductivity in Ce_2RhIn_8 (2002)
Nicklas, M., Sidorov, V. A., Borges, H. A., Pagliuso, P. G., Petrovic, C., Fisk, Z., ...
We report the discovery of pressure-induced superconductivity, with T_c=2 K, in the heavy-fermion antiferromagnet Ce_2RhIn_8, where superconductivity and magnetic order coexist over an extended...
Urbano, R. R., Pagliuso, P. G., Rettori, C., Kopelevich, Y., Moreno, N. O., Sarrao, J. L.
We report the first observation of the internal magnetic-field distribution and flux-line depinning in the vortex-state of a type-II superconductor probed by conduction electrons spin resonance...
First order superconducting phase transition in CeCoIn$_5$ (2002)
Bianchi, A., Movshovich, R., Oeschler, N., Gegenwart, P., Steglich, F., Thompson, J. D., ...
We investigated the magnetic field dependence of the superconducting phase transition in heavy fermion CeCoIn_5 (T_c = 2.3 K) using specific heat, magneto-caloric effect, and thermal expansion...
Spin dynamics in a hole-doped S=1/2 Heisenberg antiferromagnet with a disordered ground state (2002)
Only 3% hole doping by Li is sufficient to suppress the long-range antiferromagnetic order in La2CuO4. Spin dynamics in such a disordered state was investigated with measurements of the dynamic...
Low-temperature electrical transport in bilayer manganite La$_{1.2}$Sr$_{1.8}$Mn$_{2}$O$_{7}$ (2002)
Zhang, C. L., Chen, X. J., Almasan, C. C., Gardner, J. S., Sarrao, J. L.
The temperature $T$ and magnetic field $H$ dependence of anisotropic in-plane $\rho_{ab}$ and out-of-plane $\rho_{c}$ resistivities have been investigated in single crystals of the bilayer manganite...
Heat capacity of the heavy fermion superconductor CeIrIn5 under hydrostatic pressure (2002)
Borth,R., Lengyel,E., Pagliuso,P. G., Sarrao,J. L., Sparn,G., Steglich,F., ...
CeIrIn5 belongs to a new class of heavy fermion (HE) superconductors that crystallize in the tetragonal HoCoGa5- structure. This structure can be regarded as alternating layers of CeIn3 and IrIn2....
Effect of pressure on unconventional superconductivity in CeCoIn5 (2002)
Sparn,G., Borth,R., Lengyel,E., Pagliuso,P. G., Sarrao,J. L., Steglich,F., ...
Studies of a new family of heavy fermion (HE) superconductors CeMIn5 (M: transition metal) point toward the realization of unconventional superconductivity (SC): the specific heat, thermal...
Superconductivity and Quantum Criticality in CeCoIn_5 (2002)
Sidorov, V. A., Nicklas, M., Pagliuso, P. G., Sarrao, J. L., Bang, Y., Balatsky, A. V., ...
Electrical resistivity measurements on a single crystal of the heavy-fermion superconductor CeCoIn_5 at pressures to 4.2 GPa reveal a strong crossover in transport properties near P^* \approx 1.6...
Moshopoulou, E. G., Sarrao, J. L., Pagliuso, P. G., Moreno, N. O., Thompson, J. D., Fisk, Z., ...
The crystal structure of the recently discovered heavy-fermion (HF) superconductor CeCoIn5 (Tc = 2.3 K) has been determined by high-resolution neutron powder diffraction. It is tetragonal (space...
Neutron-diffraction study of field-induced transitions in the heavy-fermion compound Ce2RhIn8 (2002)
Moshopoulou, E. G., Prokes, K., Garcia-Matres, E., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D.
We present neutron diffraction measurements in high magnetic fields (0 to 14.5 T) and at low temperatures (2.5, 2.3, 0.77 and 0.068 K) on single crystals of the tetragonal heavy fermion...
Magnetic Properties of Heavy Fermion Superconductors CeRhIn5 and Ce2RhIn8 (2002)
Bao, Wei, Aeppli, G., Christianson, A. D., Fisk, Z., Hundley, M. F., Larcerda, A. H., ...
Some recent neutron scattering works on CeRhIn5 and Ce2RhIn8, together with related resistivity and specific heat measurements, are summarized. In spite of its layered crystal structure, CeRhIn5 is...
Magnetocrystalline Anisotropy in a Single Crystal of CeNiGe2 (2002)
Jung, M. H., Harrison, N., Lacerda, A. H., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D.
We report measurements on single crystals of orthorhombic CeNiGe2, which is found to exhibit highly anisotropic magnetic and transport properties. The magnetization ratio M(H//b)/M(H^b) at 2 K is...
Two energy scales and slow crossover in YbAl3 (2002)
Lawrence, J.M., Ebihara, T., Riseborough, P.S., Booth, C.H., Pagliuso, P.G., Sarrao, J.L., ...
We present results for YbAl$_3$ which show that the susceptibility $\chi(T)$, 4f occupation number $n_f(T)$ and the entropy $S(T)$ exhibit a slow crossover between the Fermi liquid and local moment...
Carrier relaxation dynamics in heavy fermion compounds (2002)
Demsar, J., Tracy, L. A., Averitt, R. D., Trugman, S. A., Sarrao, J. L., Taylor, A. J.
The first femtosecond carrier relaxation dynamics studies in heavy fermion compounds are presented. The carrier relaxation time shows a dramatic hundred-fold increase below the Kondo temperature...
First-Order Superconducting Phase Transition in CeCoIn5 (2002)
Bianchi, A., Movshovich, R., Oeschler, N., Gegenwart, P., Steglich, F., Thompson, J. D., ...
The superconducting phase transition in heavy fermion CeCoIn5 (T-c=2.3 K in zero field) becomes first order when the magnetic field Hparallel to[001] is greater than 4.7 T, and the transition...
Heat capacity of the heavy fermion superconductor CeIrIn5 under hydrostatic pressure (2002)
Borth, R., Lengyel, E., Pagliuso, P. G., Sarrao, J. L., Sparn, G., Steglich, F., ...
CeIrIn5 belongs to a new class of heavy fermion (HE) superconductors that crystallize in the tetragonal HoCoGa5- structure. This structure can be regarded as alternating layers of CeIn3 and IrIn2....
Effect of pressure on unconventional superconductivity in CeCoIn5 (2002)
Sparn, G., Borth, R., Lengyel, E., Pagliuso, P. G., Sarrao, J. L., Steglich, F., ...
Studies of a new family of heavy fermion (HE) superconductors CeMIn5 (M: transition metal) point toward the realization of unconventional superconductivity (SC): the specific heat, thermal...
Unconventional superconductivity in CeCoIn5 - a high pressure study (2002)
Sparn, G., Borth, R., Lengyel, E., Pagliuso, P. G., Sarrao, J. L., Steglich, F., ...
The hybridization between a periodic lattice of almost localized (core like) electrons (of lanthanides or actinides) and band electrons has challenged researchers for over 30 years to unravel its...
Effect of La doping on magnetic structure in heavy fermion CeRhIn5 (2001)
Bao, Wei, Christianson, A. D., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D., Lacerda, A. H., ...
The magnetic structure of Ce0.9La0.1RhIn5 is measured using neutron diffraction. It is identical to the incommensurate transverse spiral for CeRhIn5, with a magnetic wave vector q_M=(1/2,1/2,0.297),...
Effect of pressure on magnetic structure in heavy fermion CeRhIn5 (2001)
Bao, Wei, Trevino, S. F., Lynn, J. W., Pagliuso, P. G., Sarrao, J. L., Thompson, J. D., ...
The effect of hydrostatic pressure on the incommensurate antiferromagnetic structure of CeRhIn5 is investigated with neutron diffraction using a He pressure cell. At 3.8 kbar, the staggered magnetic...
Fisher, R. A., Bouquet, F., Phillips, N. E., Hundley, M. F., Pagliuso, P. G., Sarrao, J. L., ...
Measurements of the specific heat of antiferromagnetic CeRhIn5, to 21 kbar, and for 21 kbar to 70 kOe, show a discontinuous change from an antiferromagnetic ground state below 15 kbar to a...
Magnetotransport of CeRhIn5 (2001)
Christianson, A. D., Lacerda, A., Hundley, M. F., Pagliuso, P. G., Sarrao, J. L.
We report measurements of the temperature-dependent anisotropic resistivity and in-plane magnetoresistance on single crystals of the tetragonal heavy-fermion antiferromagnet (TN = 3.8 K) CeRhIn5. The...
Unusual kondo behavior in the indium-rich heavy fermion antiferromagnet Ce3Pt4In13 (2001)
Hundley, M. F., Sarrao, J. L., Thompson, J. D., Movshovich, R., Jaime, M., Petrovic, C., ...
We report the thermodynamic, magnetic, and electronic transport properties of the new ternary intermetallic system (Ce,La)3Pt4In13. Ce3Pt4In13 orders antiferromagnetically at 0.95 K while the...
Nicklas, M., Borth, R., Lengyel, E., Pagliuso, P. G., Sarrao, J. L., Sidorov, V. A., ...
We report measurements of the pressure-dependent superconducting transition temperature $T_c$ and electrical resistivity of the heavy-fermion compound CeCoIn$_5$. Pressure moves CeCoIn$_5$ away from...
Bianchi, A., Movshovich, R., Jaime, M., Thompson, J. D., Pagliuso, P. G., Sarrao, J. L.
We present the results of the specific heat and AC magnetic susceptibility measurements of $CeIr_{1-x}Rh_xIn_5$ for x from 0 to 0.5. As x is increased from 0 both quantities reflect the competition...
Two energy scales and slow crossover in YbAl3 (2001)
Lawrence, J. M., Ebihara, T., Riseborough, P. S., Booth, C. H., Hundley, M. F., Pagliuso, P. G., ...
Experimental results for the susceptibility, specific heat, 4f occupation number, Hall effect and magnetoresistance for single crystals of YbAl$_{3}$ show that, in addition to the Kondo energy scale...
Bulk Band Gaps in Divalent Hexaborides (2001)
Denlinger, J. D., Clack, J. A., Allen, J. W., Poirier, D. M., Olson, C. G., ...
Complementary angle-resolved photoemission and bulk-sensitive k-resolved resonant inelastic x-ray scattering of divalent hexaborides reveal a >1 eV X-point gap between the valence and conduction...
Temperature Dependent 5f-states in URu_2Si_2 (2001)
Denlinger, J. D., Allen, J. W., Sarrao, J. L.
A dramatic temperature dependent enhancement of U 5f spectral weight at $E_F$ is observed in angle-resolved photoemission measurements of $URu_2Si_2$ at the center of an X-point hole-pocket....
Multiple phase transitions in Ce(Rh,Ir,Co)In5 heavy-fermion superconductors (2001)
Pagliuso, P. G., Movshovich, R., Bianchi, A. D., Nicklas, M., Moreno, N. O., Thompson, J. D., ...
Magnetic susceptibility, electrical resistivity and heat capacity data for single crystals of Ce(Rh,Ir)1-x(Co,Ir)xIn5 (0 < x < 1) have allowed us to construct a detailed phase diagram for this new...
ARPES Study of X-Point Band Overlaps in LaB$_6$ and SmB$_6$ - Contrast to SrB$_6$ and EuB$_6$ (2001)
Denlinger, J. D., Allen, J. W., Olson, C. G., ...
In contrast to our recent finding of an X-point band gap in divalent hexaborides, we report here that angle resolved photoemission spectroscopy (ARPES) data shows that the gap is absent for trivalent...
Localized f electrons in CexLa1-xRhIn5: dHvA Measurements (2001)
Alver, U., Goodrich, R. G., Harrison, N., Hall, Donavan, Palm, E. C., Murphy, T. P., ...
Measurements of the de Haas-van Alphen effect in CexLa1-xRhIn5 reveal that the Ce 4f electrons remain localized for all x, with the mass enhancement and progressive loss of one spin from the de...
Different Gd3+ sites in CaB6: an ESR study (2001)
Urbano, R. R., Rettori, C., Barberis, G. E., Torelli, M., Bianchi, A., Fisk, Z., ...
The local environment of Gd3+ (4f7 S=7/2) ions in single crystals of Ca1-xGdxB6 (0.0001 < x < 0.01) is studied by means of Electron Spin Resonance (ESR). The spectra for low concentration samples (x...
Role of the E2g phonon in the superconductivity of MgB2: a Raman scattering study (2001)
Martinho, H., Rettori, C., Pagliuso, P. G., Moreno, N. O., Sarrao, J. L.
Temperature dependent Raman scattering studies in polycrystalline MgB2(10
Anomalous NMR Magnetic Shifts in CeCoIn_5 (2001)
Curro, N. J., Simovic, B., Hammel, P. C., Pagliuso, P. G., Martins, G. B., Sarrao, J. L., ...
We report ^{115}In and ^{59}Co Nuclear Magnetic Resonance (NMR) measurements in the heavy fermion superconductor CeCoIn_5 above and below T_c. The hyperfine couplings of the In and Co are anisotropic...
Cornelius, A. L., Pagliuso, P. G., Hundley, M. F., Sarrao, J. L.
We have measured the field-dependent heat capacity in the tetragonal antiferromagnets CeRhIn$_{5}$ and Ce$_{2}$RhIn$_{8}$, both of which have an enhanced value of the electronic specific heat...
Anomalous Superconducting Properties and Field Induced Magnetism in CeCoIn5 (2001)
Murphy, T. P., Hall, Donavan, Palm, E. C., Tozer, S. W., Petrovic, C., Fisk, Z., ...
In the heavy fermion superconductor CeCoIn5 (Tc=2.3K) the critical field is large, anisotropic and displays hysteresis. The magnitude of the critical-field anisotropy in the a-c plane can be as large...
Mixed lattice and electronic states in high-temperature superconductors (2001)
McQueeney, R. J., Sarrao, J. L., Pagliuso, P. G., Stephens, P. W., Osborn, R.
Inelastic neutron scattering measurements are presented which show the abrupt development of new oxygen lattice vibrations near the doping-induced metal-insulator transition in La(2-x)Sr(x)CuO(4). A...
Heavy-fermion superconductivity in CeCoIn5 at 2.3K (2001)
Petrovic, C., Pagliuso, P. G., Hundley, M. F., Movshovich, R., Sarrao, J. L., Thompson, J. D., ...
We report the observation of heavy-fermion superconducitivity in CeCoIn5 at Tc =2.3 K. When compared to the pressure-induced Tc of its cubic relative CeIn3 (Tc ~200 mK), the Tc of CeCoIn5 is...
The Fermi surface of CeCoIn5: dHvA (2001)
Hall, Donavan, Palm, E., Murphy, T., Tozer, S., Fisk, Z., Alver, U., ...
Measurements of the de Haas - van Alphen effect in the normal state of the heavy Fermion superconductor CeCoIn5 have been carried out using a torque cantilever at temperatures ranging from 20 to 500...
Anisotropic three-dimentional magnetic fluctuations in heavy fermion CeRhIn5 (2001)
Bao, Wei, Aeppli, G., Lynn, J. W., Pagliuso, P. G., Sarrao, J. L., Hundley, M. F., ...
CeRhIn5 is a heavy fermion antiferromagnet that orders at 3.8 K. The observation of pressure-induced superconductivity in CeRhIn5 at a very high Tc of 2.1 K for heavy fermion materials has led to...
Magnetic Structure of Heavy Fermion Ce2RhIn8 (2001)
Bao, Wei, Pagliuso, P. G., Sarrao, J. L., Thompson, J. D., Fisk, Z., Lynn, J. W.
Magnetic structure of the heavy fermion antiferromagnet Ce2RhIn8 is determined using neutron diffraction.
Heffner, R. H., MacLaughlin, D. E., Sonier, J. E., Nieuwenhuys, G. J., Bernal, O. O., Simovic, Barbara, ...
This paper has been withdrawn by the authors. We performed additional zero-field muon spin relaxation measurements in the superconducting state of CeIrIn$_5$ and found that the spontaneous fields...
Coexistence of magnetism and superconductivity in CeRh1-xIrxIn5 (2001)
Pagliuso, P. G., Movshovich, R., Hall, D., Hundley, M. F., Sarrao, J. L., ...
We report a thermodynamic and transport study of the phase diagram of CeRh1-xIrxIn5. Superconductivity is observed over a broad range of doping, 0.3 < x < 1, including a substantial range of...
Mixed Lattice and Electronic States in High-Temperature Superconductors (2001)
McQueeney, R. J., Osborn, R., Pagliuso, P. G., Sarrao, J. L., Stephens, P. W.
Superconductivity and Magnetism in a New Class of Heavy-Fermion Materials (2000)
Thompson, J. D., Movshovich, R., Fisk, Z., Bouguet, F., Curro, N. J., Fisher, R. A., ...
We report a new family of Ce-based heavy-fermion compounds whose electronic specific heat coefficients range from about 400 to over 700 mJ/mole Ce-K2. Crystal in this family form as CenTmIn3n+2m,...
A New Heavy-Fermion Superconductor CeIrIn5: Relative of the Cuprates? (2000)
Petrovic, C., Movshovich, R., Jaime, M., Pagliuso, P. G., Hundley, M. F., Sarrao, J. L., ...
CeIrIn5 is a member of a new family of heavy-fermion compounds and has a Sommerfeld specific heat coefficient of 720 mJ/mol-K2. It exhibits a bulk, thermodynamic transition to a superconducting state...
Electronic Structure of CeRhIn$_{5}$: dHvA and Energy Band Calculations (2000)
Hall, Donavan, Palm, E., Murphy, T., Tozer, S., Miller-Ricci, Eliza, Peabody, Lydia, ...
The de Haas - van Alphen effect and energy band calculations are used to study angular dependent extremal areas and effective masses of the Fermi surface of the highly correlated antiferromagnetic...
Movshovich, R., Jaime, M., Thompson, J. D., Petrovic, C., Fisk, Z., Pagliuso, P. G., ...
Low temperature specific heat and thermal conductivity measurements on the ambient pressure heavy fermion superconductors CeIrIn5 and CeCoIn5 reveal power law temperature dependences of these...
Martinho, H., Moreno, N. O., Sanjurjo, J. A., Rettori, C., Garcia-Adeva, A. J., Huber, D. L., ...
The $T$-dependence (2- 400 K) of the electron paramagnetic resonance (EPR), magnetic susceptibility, $\chi (T)$, and specific heat, $C_{v}(T)$, of the $normal$ antiferromagnetic (AFM) spinel...
Incommensurate magnetic structure of CeRhIn5 (2000)
Bao, Wei, Pagliuso, P. G., Sarrao, J. L., Thompson, J. D., Fisk, Z., Lynn, J. W., ...
The magnetic structure of the heavy fermion antiferromagnet CeRhIn5 is determined using neutron diffraction. We find a magnetic wave vector q_M=(1/2,1/2,0.297), which is temperature independent up to...
Denlinger, J. D., Clack, J. A., Allen, J. W., Poirier, D. M., Olson, C. G., ...
This paper has been withdrawn by the authors due to new theoretical evidence and experimental proof that the semiconducting bandgap reported in this paper and ascribed to a surface region is in fact...
Slow crossover in YbXCu4 intermediate valence compounds (2000)
Lawrence, J. M., Riseborough, P. S., Booth, C. H., Sarrao, J. L., Thompson, J. D., Osborn, R.
We compare the results of measurements of the magnetic susceptibility Chi(T), the linear coefficient of specific heat Gamma(T)=C(T)/T and 4f occupation number nf(T) for the intermediate valence...
Movshovich, R., Moshopoulou, E. G., Jaime, M., Hundley, M. F., Sarrao, J. L.
In order to separate electronic and phonon mechanisms of thermal transport in high temperature superconducting Bi2212, we measured thermal conductivity of single crystals of Y-doped Bi2212, an...
Structural effects in the EPR spectra of Ni3+ in La2Ni0.5Li0.5O4 (2000)
Urbano, R R, Rettori, C, Oseroff, S B, Martins, G B, Fisk, Z, Pagliuso, P G, ...
Magnetotransport in the low carrier density ferromagnet EuB_6 (1999)
Suellow, S., Prasad, I., Bogdanovich, S., Aronson, M. C., Sarrao, J. L., Fisk, Z.
We present a magnetotransport study of the low--carrier density ferromagnet EuB_6. This semimetallic compound, which undergoes two ferromagnetic transitions at T_l = 15.3 K and T_c = 12.5 K, exhibits...
Observation of a new excitation in the mixed-valent state of YbInCu_4 (1999)
Garner, S. R., Rodriguez, Y. W., Schlesinger, Z., Bucher, B., Fisk, Z., Sarrao, J. L.
Infrared measurements are used to obtain conductivity as a function of temperature and frequency in YbInCu_4, which exhibits an isostructural transition to a mixed-valent state at T_v \simeq 42 K. In...
Commensurate dynamic magnetic correlations in La2(Cu,Li)O4 (1999)
Bao, Wei, McQueeney, R. J., Heffner, R., Sarrao, J. L., Dai, P., Zarestky, J. L.
When sufficient numbers of holes are introduced into the two-dimensional CuO2 square lattice, dynamic magnetic correlations become incommensurate with underlying lattice in all previously...
Disorder-Driven Non-Fermi-Liquid Behavior in CeRhRuSi_2 (1999)
Liu, Chia-Ying, MacLaughlin, D. E., Neto, A. H. Castro, Lukefahr, H. G., Thompson, J. D., Sarrao, J. L., ...
We report measurements of the bulk magnetic susceptibility and ^{29}Si nuclear magnetic resonance (NMR) linewidth in the heavy-fermion alloy CeRhRuSi_2. The linewidth increases rapidly with...
Billinge, S. J. L., Proffen, Th., Petkov, V., Sarrao, J. L., Kycia, S.
High real-space-resolution atomic pair distribution functions of La_(1-x)Ca_(x)MnO_3 (x=0.12, 0.25 and 0.33) have been measured using high-energy x-ray powder diffraction to study the size and shape...
Phonons and hole localization in La(1.475)Nd(0.4)Sr(0.125)CuO(4) (1999)
McQueeney, R. J., Sarrao, J. L., Gardner, J. S., Hundley, M. F., Osborn, R.
The phonon densities-of-states of La(1.475)Nd(0.4)Sr(0.125)CuO(4) and La(1.9)Sr(0.1)CuO(4) were measured using inelastic neutron scattering. The ~70 meV phonon band which appears due to hole doping...
Heat Capacity Measurements in Pulsed Magnetic Fields (1999)
Jaime, M., Movshovich, R., Sarrao, J. L., Kim, J., Stewart, G., Beyerman, W. P., ...
The new NHMFL 60T quasi-continuous magnet produces a flat-top field for a period of 100 ms at 60 Tesla, and for longer time at lower fields, e.g. 0.5 sec at 35 Tesla. We have developed for the first...
Mobile anti-phase domains in lightly doped lanthanum cuprate (1998)
Hammel, P. C., Suh, B. J., Sarrao, J. L., Fisk, Z.
Light hole doping of lanthanum cuprate strongly suppresses the onset of antiferromagnetic (AF) order. Surprisingly, it simultaneously suppresses the extrapolated zero temperature sub-lattice...
Suh, B. J., Yoshinari, Y., Thompson, J. D., Hammel, P. C., Sarrao, J. L., Fisk, Z.
^{139}La nuclear quadrupole resonance measurements in lightly doped La_2Cu_{1-x}Li_xO_4 have been performed to reveal the dependence of the magnetic properties of the antiferromagnetic CuO_2 planes...
Movshovich, R., Hubbard, M. A., Salamon, M. B., Balatsky, A. V., Yoshizaki, R., Sarrao, J. L.
We report the discovery of a low-temperature phase transition in Bi_2Sr_2Ca(Ni_xCu_{1-x})_20_8 high temperature superconductor. This transition manifests itself as a sharp reduction of the thermal...
Transport properties of FeSi (1997)
Buschinger,B., Geibel,C., Steglich,F., Mandrus,D., Young,D., Sarrao,J. L., ...
Transport properties of FeSi (1997)
Buschinger, B., Geibel, C., Steglich, F., Mandrus, D., Young, D., Sarrao, J. L., ...
The physics and chemistry of heavy fermions.
Fisk, Z, Sarrao, J L, Smith, J L, Thompson, J D
The heavy fermions are a subset of the f-electron intermetallic compounds straddling the magnetic/nonmagnetic boundary. Their low-temperature properties are characterized by an electronic energy...
The physics and chemistry of heavy fermions.
Fisk, Z, Sarrao, J L, Smith, J L, Thompson, J D
The heavy fermions are a subset of the f-electron intermetallic compounds straddling the magnetic/nonmagnetic boundary. Their low-temperature properties are characterized by an electronic energy...
Electronic duality in strongly correlated matter
Park, T., Graf, M. J., Boulaevskii, L., Sarrao, J. L., Thompson, J. D.
Superconductivity develops from an attractive interaction between itinerant electrons that creates electron pairs, which condense into a macroscopic quantum state—the superconducting state. On the...