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GeFujiwara, Hidenori*; Nakatani, Yasuhiro*; Aratani, Hidekazu*; Kanai-Nakata, Yuina*; Yamagami, Kohei*; Hamamoto, Satoru*; Kiss, Takayuki*; Sekiyama, Akira*; Tanaka, Arata*; Ebihara, Takao*; et al.
New Physics; Sae Mulli, 73(12), p.1062 - 1066, 2023/12
symmetry for anisotropic 
hybridization in the heavy-fermion superconductor CeNiGeFujiwara, Hidenori*; Nakatani, Yasuhiro*; Aratani, Hidekazu*; Kanai, Yuina*; Yamagami, Kohei*; Hamamoto, Satoru*; Kiss, Takayuki*; Yamasaki, Atsushi*; Higashiya, Atsushi*; Imada, Shin*; et al.
Physical Review B, 108(16), p.165121_1 - 165121_10, 2023/10
Times Cited Count：0 Percentile：0(Materials Science, Multidisciplinary)
Ni
In
Sakai, Hironori; Tokunaga, Yo; Kambe, Shinsaku; Zhu, J.-X.*; Ronning, F.*; Thompson, J. D.*; Kotegawa, Hisashi*; To, Hideki*; Suzuki, Kohei*; Oshima, Yoshiki*; et al.
Physical Review B, 106(23), p.235152_1 - 235152_8, 2022/12
Times Cited Count：0 Percentile：0(Materials Science, Multidisciplinary)We investigate the electronic state of Ni-substituted CeCoNi
In by nuclear quadrupole and magnetic resonance (NQR/NMR) techniques. The heavy fermion superconductivity below 
K for 
is suppressed by Ni substitutions, and 
reaches zero for 
. The 
In NQR spectra for 
and 0.25 can be explained by simulating the electrical field gradient that is calculated for a virtual supercell with density functional theory. The spin-lattice relaxation rate 
indicates that Ni substitution weakens antiferromagnetic correlations that are not localized near the substituent but instead are uniform in space. The temperature (
) dependence of 
for shows a maximum around 
K and decreases toward almost zero when temperature is further reduced as if a gap might be opening in the magnetic excitation spectrum; however, the magnetic specific heat and the static magnetic susceptibility evolve smoothly through 
with a 
dependence. The peculiar T dependence of and non-Fermi-liquid specific heat and susceptibility can be interpreted in a unified way by assuming nested antiferromagnetic spin fluctuations in a quasi-two-dimensional electronic system.
Higemoto, Wataru; Yokoyama, Makoto*; Ito, Takashi; Suzuki, Taiga*; Raymond, S.*; Yanase, Yoichi*
Proceedings of the National Academy of Sciences of the United States of America, 119(49), p.e2209549119_1 - e2209549119_6, 2022/11
Times Cited Count：0 Percentile：0(Multidisciplinary Sciences)no abstracts in English
; Pulsed-field NMR study on single crystals up to 56 TTokunaga, Yo; Orlova, A.*; Bruyant, N.*; Aoki, Dai*; Mayaffre, H.*; Kr
mer, S.*; Julien, M.-H.*; Berthier, C.*; Horvati
, M.*; Higa, Nonoka; et al.
Physical Review B, 99(8), p.085142_1 - 085142_5, 2019/02
Times Cited Count：6 Percentile：27.67(Materials Science, Multidisciplinary)The heavy-fermion antiferromagnet CeIn exhibits a field-induced anomaly associated with Fermi surface reconstruction at 
45 T, well below the antiferromagnetic (AFM) critical field that exceeds 60 T. In order to explore the origin of this anomaly, we have measured In NMR spectra in pulsed magnetic fields up to 56 T using high-quality single crystals. To within experimental resolution, we do not detect any change in the NMR spectra that could suggest a modification in either the character of the hyperfine field or the electric field gradient at In sites through 
. This strongly suggests that the 45 T anomaly cannot be simply ascribed to a field-induced change in the magnetic structure of the AFM state.
symmetry in CeCuGe; Soft X-ray absorption and hard X-ray photoemission spectroscopyAratani, Hidekazu*; Nakatani, Yasuhiro*; Fujiwara, Hidenori*; Kawada, Moeki*; Kanai, Yuina*; Yamagami, Kohei*; Fujioka, Shuhei*; Hamamoto, Satoru*; Kuga, Kentaro*; Kiss, Takayuki*; et al.
Physical Review B, 98(12), p.121113_1 - 121113_6, 2018/09
Times Cited Count：5 Percentile：25.82(Materials Science, Multidisciplinary)Ge in the normal stateNakatani, Yasuhiro*; Aratani, Hidekazu*; Fujiwara, Hidenori*; Mori, Takeo*; Tsuruta, Atsushi*; Tachibana, Shoichi*; Yamaguchi, Takashi*; Kiss, Takayuki*; Yamasaki, Atsushi*; Yasui, Akira*; et al.
Physical Review B, 97(11), p.115160_1 - 115160_7, 2018/03
Times Cited Count：5 Percentile：20.71(Materials Science, Multidisciplinary)
U M
ssbauer study of UPt
Tsutsui, Satoshi; Nakada, Masami; Nasu, Saburo*; Haga, Yoshinori; Yamamoto, Etsuji; Kimura, Noriaki*; Onuki, Yoshichika
Journal of Magnetism and Magnetic Materials, 226-230(Part.1), p.87 - 88, 2001/05
no abstracts in English
Metoki, Naoto
Journal of the Physical Society of Japan, Vol.70, Supplement A, p.11 - 13, 2001/05
no abstracts in English
U Mssbauer study on the magnetic properties of uranium-based heavy fermion superconductorsTsutsui, Satoshi; Nakada, Masami; Nasu, Saburo*; Haga, Yoshinori; Homma, Tetsuo; Yamamoto, Etsuji; Okuni, Hitoshi*; Onuki, Yoshichika
Hyperfine Interactions, 126(1-4), p.335 - 340, 2000/07
Times Cited Count：6 Percentile：38.01(Physics, Atomic, Molecular & Chemical)no abstracts in English
U Mssbauer spectrosopic study of UPdAl and URuSiTsutsui, Satoshi; Nakada, Masami; Nasu, Saburo*; Haga, Yoshinori; Homma, Tetsuo; Yamamoto, Etsuji; Okuni, Hitoshi*; Onuki, Yoshichika
Physica B; Condensed Matter, 281-282, p.242 - 243, 2000/06
Times Cited Count：3 Percentile：22.15(Physics, Condensed Matter)no abstracts in English
Metoki, Naoto; Koike, Yoshihiro; Haga, Yoshinori; Yamamoto, Etsuji; Homma, Tetsuo; Onuki, Yoshichika; Kimura, Noriaki*; Maezawa, Kunio*
Physica B; Condensed Matter, 281-282, p.987 - 988, 2000/06
Times Cited Count：1 Percentile：8.61(Physics, Condensed Matter)no abstracts in English
Metoki, Naoto; Koike, Yoshihiro; Haga, Yoshinori; Homma, Tetsuo; Sato, Masugu; Onuki, Yoshichika
Physica B; Condensed Matter, 280(1-4), p.362 - 367, 2000/05
Times Cited Count：3 Percentile：22.15(Physics, Condensed Matter)no abstracts in English
Si studied by neutron scattering experimentsHomma, Tetsuo*; Haga, Yoshinori; Yamamoto, Etsuji; Metoki, Naoto; Koike, Yoshihiro*; Okuni, H.*; Suzuki, N.*; Onuki, Yoshichika*
Journal of the Physical Society of Japan, 68(2), p.338 - 341, 1999/02
Times Cited Count：27 Percentile：87.58(Physics, Multidisciplinary)no abstracts in English
Metoki, Naoto; Koike, Yoshihiro*; Haga, Yoshinori; Onuki, Yoshichika*
Physica B; Condensed Matter, 259-261, p.660 - 661, 1999/00
Times Cited Count：2 Percentile：16.49(Physics, Condensed Matter)no abstracts in English
AlMetoki, Naoto; Haga, Yoshinori; Koike, Yoshihiro*; Onuki, Yoshichika*
Physical Review Letters, 80(24), p.5417 - 5420, 1998/06
Times Cited Count：98 Percentile：92.56(Physics, Multidisciplinary)no abstracts in English
AlKoike, Yoshihiro*; Metoki, Naoto; Haga, Yoshinori; Onuki, Yoshichika*; Morii, Yukio
Physica B; Condensed Matter, 241-243, p.823 - 825, 1998/00
Times Cited Count：0 Percentile：0(Physics, Condensed Matter)no abstracts in English
Koike, Yoshihiro*; Metoki, Naoto; Kimura, Noriaki*; Haga, Yoshinori; Yamamoto, Etsuji; Onuki, Yoshichika*; *
Physics of Strongly Correlated Electron Systems (JJAP Series 11), p.44 - 46, 1998/00
no abstracts in English
Kaneko, Koji
no journal, ,
no abstracts in English
Sakai, Hironori
no journal, ,
Quantum criticalities tuned by pressure, external field, and chemical substitutions mark an important link in the heavy fermion superconductors. Systematic NMR investigations have suggested that 
-type antiferromagnetic spin fluctuations are favorable for 
-wave superconductivity in 115 compounds. Recently, anisotropy of antiferromagnetic spin fluctuations is now being microscopically examined in several other tetragonal systems like CeRh
Si under pressures. Moreover, electrical inhomogeneity near quantum critical point is also detected in the chemically substituted CeCoIn.
