Matsumoto, Y., Kuga, K., Karaki, Y., Tomita, T., Nakatsuji, S.
$\beta$-YbAlB$_4$ is the first Yb-based heavy fermion superconductor with $T_{\rm c} = 80$ mK. We measured low temperature magnetization of high-purity single crystals down to $T=$ 25 mK. The...
Evidence for the existence of Kondo coupled resonant modes in heavy fermions (2009)
Holanda, L. M., Vargas, J. M., Rettori, C., Nakatsuji, S., Kuga, K., Fisk, Z., ...
Electron Spin Resonance (ESR) can microscopically probe both conduction electrons (ce) and local moment (LM) spin systems in different materials. A ce spin resonance (CESR) is observed in metallic...
Okawa, M., Matsunami, M., Ishizaka, K., Eguchi, R., Taguchi, M., Chainani, A., ...
Electronic structures of the quantum critical superconductor beta-YbAlB4 and its polymorph alpha-YbAlB4 are investigated by using bulk-sensitive hard x-ray photoemission spectroscopy. From the Yb 3d...
Fukazawa, H., Yamada, Y., Kondo, K., Saito, T., Kohori, Y., Kuga, K., ...
We report the 75As nuclear quadrupole resonance (NQR) and specific heat measurements of the heavily hole-doped superconductor KFe2As2 (Tc = 3.5 K). The spin-lattice relaxation rate 1/T1 in the...
The role of f -electrons in the Fermi surface of the heavy fermion superconductor beta-YbAlB4 (2008)
O'Farrell, E. C. T., Tompsett, D. A., Sebastian, S. E., Harrison, N., Capan, C., Balicas, L., ...
We present a detailed quantum oscillation study of the Fermi surface of the recently discovered Yb-based heavy fermion superconductor beta-YbAlB4 . We compare the data, obtained at fields from 10 to...
Unconventional spin freezing and fluctuations in the frustrated antiferromagnet NiGa2S4 (2008)
MacLaughlin, D. E., Nambu, Y., Nakatsuji, S., Heffner, R. H., Shu, Lei, Bernal, O. O., ...
Muon spin rotation (muSR) experiments reveal unconventional spin freezing and dynamics in the two-dimensional (2D) triangular lattice antiferromagnet NiGa2S4. Long-lived disordered Ni-spin freezing...
Weak quasistatic magnetism in the frustrated Kondo lattice Pr_2Ir_2O_7 (2008)
MacLaughlin, D. E., Ohta, Y., Machida, Y., Nakatsuji, S., Luke, G. M., Ishida, K., ...
Muon spin relaxation experiments have been performed in the pyrochlore iridate Pr_2Ir_2O_7 for temperatures in the range 0.025-250 K. Kubo-Toyabe relaxation functions are observed up to > 200 K,...
High Field ESR in the Two-Dimensional Triangular Lattice Antiferromagnet NiGa2S4 (2008)
Yamaguchi, H., Kimura, S., Hagiwara, M., Nambu, Y., Nakatsuji, S., Maeno, Y., ...
In this Letter, we report the results of ESR measurements in high magnetic fields up to about 53 T on single crystals of NiGa2S4 to clarify the spin dynamics in more detail. We have found that the...
Takeya, H., Ishida, K., Kitagawa, K., Ihara, Y., Onuma, K., Maeno, Y., ...
We have performed $^{69,71}$Ga nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) and muon spin rotation/resonance on the quasi two-dimensional antiferromagnet (AFM)...
Takubo, K., Mizokawa, T., Nambu, Y., Onuma, K., Tonomura, H., ...
We have studied the electronic structure of the Ni triangular lattice in NiGa$_2$S$_4$ using photoemission spectroscopy and subsequent model calculations. The cluster-model analysis of the Ni 2$p$...
Field-induced paramagnons at the metamagnetic transition in Ca1.8Sr0.2RuO4 (2007)
Steffens, P., Sidis, Y., Link, P., Schmalzl, K., Nakatsuji, S., Maeno, Y., ...
The magnetic excitations in Ca1.8Sr0.2RuO4 were studied across the metamagnetic transition and as a function of temperature using inelastic neutron scattering. At low temperature and low magnetic...
Magnetoelastic coupling across the metamagnetic transition in Ca2- x Sr x RuO4 (0.2 (2007)
Baier, J, Steffens, P, Schumann, O, Kriener, M, Stark, S, Hartmann, H, ...
Field induced metastabilities in U(Ru0.96Rh0.04)2Si2 (2007)
Silhanek, A. V., Jaime, M., Harrison, N., Batista, C. D., Amitsuka, H., Nakatsuji, S., ...
Metallic molecular crystals containing chiral or racemic guest molecules (2007)
Martin, L., Day, P., Akutsu, H., Yamada, J.I., Nakatsuji, S., Clegg, W., ...
Metallic charge-transfer salts of BEDT-TTF containing both racemic (R/S)- and chiral (S)-sec-phenethyl alcohol as guest molecules have been crystallised and their structures and physical properties...
Baier, J., Steffens, P., Schumann, O., Kriener, M., Stark, S., Hartmann, H., ...
The magnetoelastic coupling in Ca$_{1.8}$Sr$_{0.2}$RuO$_4$ and in Ca$_{1.5}$Sr$_{0.5}$RuO$_4$ has been studied combining high-resolution dilatometer and diffraction techniques. Both compounds exhibit...
Electronic structures of layered perovskite Sr2MO4 (M=Ru, Rh, and Ir) (2006)
Moon, S. J., Kim, M. W., Kim, K. W., Lee, Y. S., ...
We investigated the electronic structures of the two-dimensional layered perovskite Sr$_{2}$\textit{M}O$_{4}$ (\textit{M}=4\textit{d} Ru, 4\textit{d} Rh, and 5\textit{d} Ir) using optical...
Metallic spin-liquid behavior of the geometrically frustrated Kondo lattice Pr2Ir2O7 (2006)
Nakatsuji, S, Machida, Y, Maeno, Y, Tayama, T, Sakakibara, T, Duijn, J Van, ...
Thermodynamic Properties of (Ca,Sr)$_2$RuO$_4$ in Magnetic Fields (2005)
Baier, J., Zabel, T., Kriener, M., Steffens, P., Schumann, O., Friedt, O., ...
We have studied the influence of a magnetic field on the thermodynamic properties of Ca$_{2-x}$Sr$_{x}$RuO$_4$ in the intermediate metallic region with tilt and rotational distortions ($0.2\leq x...
Akutsu-Sato, A., Kobayashi, A., Mori, T., Akutsu, H., Yamada, J., Nakatsuji, S., ...
We report the structures and physical properties of new β′-(BEDT-TTF)4[Fe(oxalate)3]·G salts where A = H3O+, G = PhCl; A = Rb+ G = Pyridine. The structure of the PhCl salt is isomorphous with...
Orbital ordering transition in Ca$_2$RuO$_4$ observed with resonant x-ray diffraction (2005)
Zegkinoglou, I., Strempfer, J., Nelson, C. S., Hill, J. P., Chakhalian, J., Bernhard, C., ...
Resonant x-ray diffraction performed at the $\rm L_{II}$ and $\rm L_{III}$ absorption edges of Ru has been used to investigate the magnetic and orbital ordering in Ca$_2$RuO$_4$ single crystals. A...
Ingle, N. J. C., Shen, K. M., Baumberger, F., Meevasana, W., Lu, D. H., Shen, Z. X., ...
ARPES spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in...
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...
Balicas, L., Nakatsuji, S., Hall, D., Lee, H., Fisk, Z., Maeno, Y., ...
We report an electrical transport study in Ca$_{2-x}$Sr$_{x}$RuO$_4$ single crystals at high magnetic fields ($B$). For $x =0.2$, the Hall constant $R_{xy}$ decreases sharply at an anisotropic...
Lee, J. S., Moon, S. J., Noh, T. W., Nakatsuji, S., Maeno, Y.
We investigated optical spectra of quasi-two-dimensional multi-band Ca$% _{2-x} $Sr$_{x}$RuO$_{4}$ systems. The extended Drude model analysis on the ab-plane optical conductivity spectra indicates...
Unpaired Electrons in the Heavy-Fermion Superconductor CeCoIn_{5} (2005)
Tanatar, M. A., Paglione, Johnpierre, Nakatsuji, S., Hawthorn, D. G., Boaknin, E., Hill, R. W., ...
Thermal conductivity and specific heat were measured in the superconducting state of the heavy fermion material Ce_{1-x}La_{x}CoIn_{5}. With increasing impurity concentration x, the suppression of...
High pressure diffraction studies on Ca2RuO4 (2005)
Steffens, P., Friedt, O., Alireza, P., Marshall, W. G., Schmidt, W., Nakamura, F., ...
We studied the crystal and magnetic structure of Ca2RuO4 by different diffraction techniques under high pressure. The observed first order phase transition at moderate pressure (0.5 GPa) between the...
Lattice dynamics and the electron-phonon interaction in Ca$_2$RuO$_4$ (2005)
Rho, H., Cooper, S. L., Nakatsuji, S., Fukazawa, H., Maeno, Y.
We present a Raman scattering study of Ca$_2$RuO$_4$, in which we investigate the temperature-dependence of the lattice dynamics and the electron-phonon interaction below the metal-insulator...
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 $x\lesssim 0.003$...
High pressure diffraction studies on Ca2RuO4 (2005)
Steffens, P, Friedt, O, Alireza, P, Marshall, W G, Schmidt, W, Nakamura, F, ...
Braden, M, Friedt, O, Schumann, O, Baier, J, Steffens, P, Kriener, M, ...
Kriener, M, Steffens, P, Baier, J, Schumann, O, Zabel, T, Lorenz, T, ...
The crystal structure of Ca2-xSrxRuO4 with 0.2
Orbital Ordering Transition in Ca2RuO4 Observed with Resonant X-Ray Diffraction (2005)
Zegkinoglou, I., Strempfer, J., Nelson, C. S., Hill, J. P., Chakhalian, J., Bernhard, C., ...
High-pressure diffraction studies on Ca2RuO4 (2005)
Stephens, P., Friedt, O., Marshall, W.G., Schmidt, W., Nakamura, F., Nakatsuji, S., ...
This version is available at the following Publisher URL: http://prb.aps.org
Structural properties of Ca§2§-§xSr§xRuO§4. (2005)
Schumann, O., Steffens, P., Müller, R., Andre, G., Radaelli, P.G., Adelmann, P., ...
Physik seit Albert Einstein : 69.Jahrestagung der DPG, Berlin, 4.-9.März 2005
Electronic structure and evolution of the orbital state in metallic Ca§2§-§xSr§xRuO§4. (2005)
Noh, H.J., Oh, S.J., Park, B.G., Park, J.H., Kim, J.Y., Kim, H.D., ...
Physical Review B, 72(2005) S.052411/1-4
Magnetic field-tuned quantum critical point in CeAuSb_2 (2004)
Balicas, L., Nakatsuji, S., Lee, H., Schlottmann, P., Murphy, T. P., Fisk, Z.
Transport, magnetic and thermal properties at high magnetic fields (H) and low temperatures (T) of the heavy fermion compound CeAuSb_2 are reported. At H=0 this layered system exhibits...
Mechanism of hopping transport in disordered Mott insulators (2004)
Nakatsuji, S., Dobrosavljevic, V., Tanaskovic, D., Minakata, M., Fukazawa, H., Maeno, Y.
By using a combination of detailed experimental studies and simple theoretical arguments, we identify a novel mechanism characterizing the hopping transport in the Mott insulating phase of...
Kriener, M., Steffens, P., Baier, J., Schumann, O., Zabel, T., Lorenz, T., ...
The crystal structure of Ca_{2-x}Sr_xRuO_4 with 0.2 < x < 1.0 has been studied by diffraction techniques and by high resolution capacitance dilatometry as a function of temperature and magnetic...
Magnetische und Kristallstruktur von Ca§2§-§xSr§xRuO§4. (2004)
Schumann, O., Friedt, O., Steffens, P., Müller, R., Andre, G., Adelmann, P., ...
Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Tiefe Temperaturen, Regensburg, 8.-12.März 2004 (Poster)
Mizokawa, T., Tjeng, L.H., Lin, H.J., Chen, C.T., Schuppler, S., Nakatsuji, S., ...
Physical Review B, 69(2004) S.132410/1-4
Strongly Enhanced Magnetic Fluctuations in a Heavy-mass Layered Ruthenate (2003)
Friedt, O., Steffens, P., Braden, M., Sidis, Y., Nakatsuji, S., Maeno, Y.
We have studied the magnetic excitations in Ca$_{2-x}$Sr$_x$RuO$_4$, x=0.52 and 0.62, which exhibit an anomalous high susceptibility and heavy mass Fermi liquid behavior. Our inelastic neutron...
Rho, H., Cooper, S. L., Nakatsuji, S., Fukazawa, H., Maeno, Y.
We use Raman scattering to study spin, charge, and lattice dynamics in various phases of Ca_{2-x}Sr_{x}RuO_{4}. With increasing substitution of Ca by Sr in the range 0 =< x < 0.2, we observe (1)...
Magnetism and unconventional superconductivity in CenMmIn3n+2m heavy-fermion crystals (2003)
Thompson,J. D., Nicklas,M., Bianchi,A., Movshovich,R., Llobet,A., Bao,W., ...
Yeo, S., Nakatsuji, S., Bianchi, A. D., Schlottmann, P., Fisk, Z., Balicas, L., ...
The phase diagram of FeSi1-xGex, obtained from magnetic, thermal and transport measurements on single crystals, shows a first-order transition from a correlated electron semiconductor to a...
Effect of the gap due to anion ordering in deuterated (TMTSF)2ClO4 at high magnetic fields (2003)
Matsunaga, N., Ayari, A., Monceau, P., Ishikawa, A., Nomura, K., Watanabe, M., ...
Magnetism and unconventional superconductivity in CenMmIn3n+2m heavy-fermion crystals (2003)
Thompson, J. D., Nicklas, M., Bianchi, A., Movshovich, R., Llobet, A., Bao, W., ...
Phasendiagramm von Ca§2§-§xSr§xRuO§4. (2003)
Steffens, P., Friedt, O., Braden, M., Lorenz, T., Baier, J., Adelmann, P., ...
Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Tiefe Temperaturen (TT), Dresden, 24.-28. März 2003
Temperature-dependent O1s NEXAFS of lightly doped Ca§2RuO§4. (2003)
Schuppler, S., Nücker, N., Mizokawa, T., Arena, D., Dvorak, J., Idzerda, Y.U., ...
National Synchrotron Light Source Activity Report for the Period October 1, 2001 through September 30, 2002
Neutron-diffraction study of the crystal structure of Ca§1§.§5Sr§0§.§5RuO§4. (2003)
Friedt, O., Braden, M., Andre, G., Nakatsuji, S., Maeno, Y.
Applied Physics A, 74(2002) Suppl., S.S1627-S1629
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...
Electron and orbital correlations in Ca_{2-x}Sr_{x}RuO_{4} probed by optical spectroscopy (2002)
Lee, J. S., Lee, Y. S., Noh, T. W., Yu, Jaejun, Nakatsuji, S., ...
The doping and temperature dependent optical conductivity spectra of the quasi-two-dimensional Ca_{2-x}Sr_xRuO_4 (0.0=
Matsunaga, N., Ayari And, A., Monceau, P., Ishikawa And, A., Nomura, K., Watanabe, M., ...
Magnetoresistance measurements have been carried out along the highly conducting a axis in the fieldinduced spin-density wave (FISDW) phase of hydrogenated and deuterated (TMTSF)2ClO4 for various...
Matsunaga, N., Ayari And, A., Monceau, P., Ishikawa And, A., Nomura, K., Watanabe, M., ...
Magnetoresistance measurements have been carried out along the highly conducting a axis in the fieldinduced
Matsunaga, N., Ayari And, A., Monceau, P., Ishikawa And, A., Nomura, K., Watanabe, M., ...
Magnetoresistance measurements have been carried out along the highly conducting a axis in the fieldinduced
Snow, C. S., Cooper, S. L., Cao, G., Crow, J. E., Fukazawa, H., Nakatsuji, S., ...
We report a Raman scattering study of the pressure-induced collapse of the Mott-like phases of Ca_3Ru_2O_7 (T_N=56 K) and Ca_2RuO_4 (T_N=110 K). The pressure-dependence of the phonon and two-magnon...
Gukasov, A., Braden, M., Papoular, R. J., Nakatsuji, S., Maeno, Y.
By means of polarized neutron diffraction in a magnetic field of 7.0 T at 1.6 K an anomalously large magnetization density is observed on the in-plane oxygen in Ca$_{1.5}$Sr$_{0.5}$RuO$_4$....
Matsunaga, N., Ayari, A., Monceau, P., Ishikawa, A., Nomura, K., Watanabe, M., ...
Magnetoresistance measurements have been carried out along the highly conducting a axis in the FISDW phase of hydrogened and deuterated (TMTSF)$_2$ClO$_4$ for various cooling rates through the anion...
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...
Matsunaga, N., Ayari, A., Monceau, P., Yamashita, K., Ishikawa, A., Nomura, K., ...
Magnetoresistance and Hall resistance measurements have been carried out in the FISDW phase of deuterated (TMTSF)(2)ClO4 for various cooling rates through the anion ordering temperature. The Hall...
Matsunaga, N., Ayari, A., Monceau, P., Ishikawa, A., Nomura, K., Watanabe, M., ...
Magnetoresistance measurements have been carried out along the highly conducting a axis in the field-induced spin-density wave (FISDW) phase of hydrogenated and deuterated (TMTSF)(2)ClO4 for various...
Structural and magnetic aspects of the metal-insulator transition in Ca§2§-§xSr§xRuO§4. (2002)
Friedt, O., Braden, M., Andre, G., Adelmann, P., Nakatsuji, S., Maeno, Y.
Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Regensburg, 11.-15.März 2002
Orbital state, spin-orbit coupling and phase transitions in ruthenates. (2002)
Tjeng, L.H., Mizokawa, T., Sawatzky, G.A., Ghiringhelli, G., Tjernberg, O., Brookes, N.B., ...
Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Regensburg, 11.-15.März 2002
Gukasov, A., Braden, M., Papoular, R.J., Nakatsuji, S., Maeno, Y.
Physical Review Letters, 89(2002) S.087202/1-4
Surface electronic structure of Sr2RuO4 (2001)
Shen, K. M., Damascelli, A., Lu, D. H., Armitage, N. P., Ronning, F., Feng, D. L., ...
We have addressed the possibility of surface ferromagnetism in Sr2RuO4 by investigating its surface electronic states by angle-resolved photoemission spectroscopy (ARPES). By cleaving samples under...
Spin-density-wave transition of (TMTSF)$_2$PF$_6$ at high magnetic fields (2001)
Matsunaga, N., Yamashita, K., Kotani, H., Nomura, K., Sasaki, T., Hanajiri, T., ...
The transverse magnetoresistance of the Bechgaard salt (TMTSF)$_2$PF$_6$ has been measured for various pressures, with the field up to 24 T parallel to the lowest conductivity direction c$^{\ast}$. A...
Structural and magnetic aspects of the metal-insulator transition in Ca§2§-§xSr§xRuO§4. (2001)
Friedt, O., Braden, M., Andre, G., Adelmann, P., Nakatsuji, S., Maeno, Y.
Internat.Conf.on Neutron Scattering (ICNS 2001), München, September 9-13, 2001
Structural and magnetic aspects of the metal-insulator transition in Ca§2§-§xSr§xRuO§4. (2001)
Friedt, O., Braden, M., Andre, G., Adelmann, P., Nakatsuji, S., Maeno, Y.
Physical Review B, 63(2001) S.174432/1-10
Electronic structure and metal-insulator transition of Ca§2§-§xSr§xRuO§4 studied by NEXAFS. (2001)
Gerhold, S., Pellegrin, E., Kuntscher, C.A., Nücker, N., Schuppler, S., Stadler, S., ...
National Synchrotron Light Source Activity Report for the Period October 1, 1999 through September 30, 2000
Perry, R. S., Galvin, L. M., Grigera, S. A., Capogna, L., Schofield, A. J., Mackenzie, A. P., ...
We report the results of low temperature transport, specific heat and magnetisation measurements on high quality single crystals of the bilayer perovskite Sr3Ru2O7, which is a close relative of the...
SDW and FISDW transition of (TMTSF)$_2$ClO$_4$ at high magnetic fields (2000)
Matsunaga, N., Briggs, A., Ishikawa, A., Nomura, K., Hanajiri, T., Yamada, J., ...
The magnetic field dependence of the SDW transition in (TMTSF)$_2$ClO$_4$ for various anion cooling rates has been measured, with the field up to 27T parallel to the lowest conductivity direction...
Structural and magnetic aspects of the metal insulator transition in Ca$_{2-x}$Sr$_x$RuO$_4$ (2000)
Friedt, O., Braden, M., Andre, G., Adelmann, P., Nakatsuji, S., Maeno, Y.
The phase diagram of Ca$_{2-x}$Sr$_x$RuO$_4$ has been studied by neutron diffraction on powder and single-crystalline samples. The experiments reveal antiferromagnetic order and structural...
Rastertunnelmikroskopie und -spektroskopie von Sr§2RuO§4. (2000)
Ade, D., Schuppler, S., Nakatsuji, S., Fukazawa, H., Maeno, Y.
Frühjahrstagung des Arbeitskreises Festkörperphysik bei der DPG, Regensburg, 26.-31.März 2000
Site specific X-ray absorption of Ca§2§-§xSr§xRuO§4. (2000)
Gerhold, S., Pellegrin, E., Kuntscher, C.A., Nücker, N., Schuppler, S., Schweiss, P., ...
18th General Conf.of the Condensed Matter Division of the European Physical Society, Montreux, CH, March 13-17, 2000
Scanning tunneling microscopy and spectroscopy of Sr§2RuO§4. (2000)
Ade, D., Schuppler, S., Nakatsuji, S., Fukazawa, H., Maeno, Y.
18th General Conf.of the Condensed Matter Division of the European Physical Society, Montreux, CH, March 13-17, 2000
Kristallstruktur und Magnetismus in A§2RuO§4 (A=Sr,Ca). (1998)
Braden, M., Andre, G., Nakatsuji, S., Maeno, Y.
6.Jahrestagung der Deutschen Gesellschaft für Kristallographie (DGK), Karlsruhe, 2.-5.März 1998
Braden, M., Andre, G., Nakatsuji, S., Maeno, Y.
Physical Review B, 58(1998) S.847-61