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Journal Articles

Evidence for momentum-dependent heavy fermionic electronic structures; Soft X-ray ARPES for the superconductor CeNi$$_{2}$$Ge$$_{2}$$ in the normal state

Nakatani, 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

AA2018-0003.pdf:1.65MB

 Times Cited Count:1 Percentile:87.28(Materials Science, Multidisciplinary)

Journal Articles

$$^{238}$$U M$"o$ssbauer study on the magnetic properties of uranium-based heavy fermion superconductors

Tsutsui, 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:60.66

no abstracts in English

Journal Articles

$$^{238}$$U M$"o$ssbauer spectrosopic study of UPd$$_{2}$$Al$$_{3}$$ and URu$$_{2}$$Si$$_{2}$$

Tsutsui, 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:76.9(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Neutron scattering studies on heavy fermion superconductors

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:90.91(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Neutron scattering studies on heavy-fermion superconductors

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:76.9(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Interplay between magnetism and superconductivity in URu$$_{2}$$Si$$_{2}$$ studied by neutron scattering experiments

Homma, 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:11.6(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Neutron scattering study on heavy fermion superconductors

Metoki, Naoto; Koike, Yoshihiro*; Haga, Yoshinori; Onuki, Yoshichika*

Physica B; Condensed Matter, 259-261, p.660 - 661, 1999/00

 Times Cited Count:2 Percentile:82.8(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Superconducting energy gap observed in the magnetic excitation spectra of a heavy fermion superconductor UPd$$_{2}$$Al$$_{3}$$

Metoki, Naoto; Haga, Yoshinori; Koike, Yoshihiro*; Onuki, Yoshichika*

Physical Review Letters, 80(24), p.5417 - 5420, 1998/06

 Times Cited Count:93 Percentile:7.1(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Interplay between magnetism and superconductivity in a heavy fermion superconductor UPd$$_{2}$$Al$$_{3}$$

Koike, 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:100(Physics, Condensed Matter)

no abstracts in English

Oral presentation

Microscopic aspects of electronic inhomogeneity and anisotropic spin fluctuations near antiferromagnetic quantum critical point

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 $$XY$$-type antiferromagnetic spin fluctuations are favorable for $$d$$-wave superconductivity in 115 compounds. Recently, anisotropy of antiferromagnetic spin fluctuations is now being microscopically examined in several other tetragonal systems like CeRh$$_2$$Si$$_2$$ under pressures. Moreover, electrical inhomogeneity near quantum critical point is also detected in the chemically substituted CeCoIn$$_5$$.

Oral presentation

How to generate a Kondo hole; A Heavy fermion superconductor CeCoIn$$_5$$ by example

Sakai, Hironori

no journal, , 

In the heavy fermion superconductor CeCoIn$$_5$$, dilute substitutions by Sn or Cd suppress the superconductivity or induce an antiferromagnetically ordered state. Such impurity effects have been microscopically investigated by nuclear quadrupole resonance (NQR) technique. While the Sn substituents weaken electronic correlations and suppress the superconductivity, the Cd substituents induce local moments closely around themselves but the bulk electronic state far from the substituents stays as in a pure CeCoIn$$_5$$. Such a heterogeneous electronic state in the Cd substituted system means a local breakage of Kondo hybridization by non-magnetic Cd substituents.

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