4 citations · 19 across the 11 of their papers we have counts for
11 papers
Intrinsic Magnetic Excitations and Heavy-Fermion Formation in the Frustrated Mn Pyrochlore System YMnZn ( = In and Al) Revealed by Nuclear Magnetic Resonance and Nuclear Quadrupole Resonance Measurements
Shunsaku Kitagawa, Kenji Ishida, Yoshihiko Okamoto +1
We performed nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements to investigate the microscopic electronic states of the -electron heavy-fermion…
Superconductivity in Ternary Zirconium Telluride Zr6RuTe2
Kosuke Yuchi, Haruka Matsumoto, Daisuke Nishio-Hamane +5
Zr6CoAl2-type Zr6RuTe2 is found to show bulk superconductivity below the superconducting transition temperature Tc = 1.1 K, according to the electrical resistivity, magnetization,…
Anisotropic superconducting gap probed by Te NMR in noncentrosymmetric ScTe ( = Fe, Co)
Kanako Doi, Hayase Takei, Yusaku Shinoda +6
The superconducting gap symmetry is investigated by Te NMR measurements on ScTe ( = Fe, Co) without spatial inversion symmetry. The spin susceptibility obtained…
Cubic ReSTe as a High-Performance Thermoelectric Material
Haruka Matsumoto, Hiroto Isomura, Keita Kojima +5
We report thermoelectric properties of sintered samples of undoped, W-doped, and Sb-doped ReSTe crystallized in a cubic MoSBr-type structure. All samples exhibited p-type thermoele…
Tailoring the normal and superconducting state properties of ternary scandium tellurides, ScTe ( Fe, Ru and Ir) through chemical substitution
J. N. Graham, K. Yuchi, V. Sazgari +10
The pursuit of a unifying theory for non-BCS superconductivity has faced significant challenges. One approach to overcome such challenges is to perform systematic investigations in…
Broken time-reversal symmetry detected by tunneling spectroscopy of superconducting Pd-doped CaAgP
Naoki Matsubara, Rikizo Yano, Kazushige Saigusa +4
The appearance of broken time-reversal symmetry (TRS) in superconducting states is an intriguing issue in solid-state physics because of the incompatibility of the spontaneous magn…
Superconductivity in Hexagonal Zr6CoAl2-Type Zr6RuBi2 and Zr6FeBi2
Kosuke Yuchi, Daisuke Nishio-Hamane, Keita Kojima +3
We report the synthesis and electronic properties of polycrystalline samples of Zr6MBi2 (M = Ru and Fe) crystallizing in the hexagonal Zr6CoAl2-type structure. Based on their elect…
Electronic Self-Organization in the β-Pyrochlore Oxide CsW2O6
Yoshihiko Okamoto
In this review, I present the electronic properties of the beta-pyrochlore oxide CsW2O6 and other related materials. At 215 K, CsW2O6 exhibits an electronic phase transition to a n…
Superconductivity in Ternary Zirconium Telluride Zr6MTe2 with 3d Transition Metals
Haruka Matsumoto, Youichi Yamakawa, Ryutaro Okuma +2
We report the synthesis, electronic properties, and electronic states of Zr6MTe2 (M = Cr, Mn, Fe, and Co), which is isostructural to a recently discovered superconductor family Sc6…
Superconductivity in Ternary Germanide ScPdGe and Silicide ScPdSi
Yusaku Shinoda, Yoshihiko Okamoto, Youichi Yamakawa +4
The electronic properties of ScPdGe and ScPdSi, crystallizing in the hexagonal ZrNiAl and orthorhombic TiNiSi structures, respectively, are investigated. ScPdGe and ScPdSi are foun…
Anisotropic Optical Conductivity Accompanied by a Small Energy Gap in One-Dimensional Thermoelectric Telluride Ta4SiTe4
Fumiya Matsunaga, Yoshihiko Okamoto, Yasunori Yokoyama +7
We investigated the optical properties of single crystals of one-dimensional telluride Ta4SiTe4, which shows high thermoelectric performance below room temperature. Optical conduct…