534 citations · 3.5k across the 82 of their papers we have counts for
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Superconductivity in Ternary Scandium Telluride Sc6MTe2 with 3d, 4d, and 5d Transition Metals
Yusaku Shinoda, Yoshihiko Okamoto, Youichi Yamakawa +3
We report the discovery of bulk superconductivity in Sc6MTe2 with seven kinds of transition-metal elements M. The critical temperatures for M = 3d elements are higher than those fo…
Superconductivity in Nb2Pd3Te5 and Chemically-Doped Ta2Pd3Te5
Naoya Higashihara, Yoshihiko Okamoto, Yuma Yoshikawa +4
We report on the superconductivity in ternary transition metal tellurides Ta2Pd3Te5 and Nb2Pd3Te5, which have a one-dimensional crystal structure. Single-crystalline and polycrysta…
Superconductivity in PtSbS with a Noncentrosymmetric Cubic Crystal Structure
Ryosuke Mizutani, Yoshihiko Okamoto, Hayate Nagaso +7
We report the synthesis, electronic properties, and electronic structure of ullmannite-type PtSbS, which has a cubic crystal structure without space inversion symmetry. Electrical…
Synthesis and Superconducting Properties of a Hexagonal Phosphide ScRhP
Takumi Inohara, Yoshihiko Okamoto, Youichi Yamakawa +1
We report the synthesis and superconducting properties of the ternary phosphide ScRhP. The crystal structure of ScRhP is determined to be the ordered Fe2P type with the hexagonal P…
Superconductivity in the Hexagonal Ternary Phosphide ScIrP
Yoshihiko Okamoto, Takumi Inohara, Youichi Yamakawa +2
We report the discovery of a bulk superconducting transition at 3.4 K in the ternary phosphide, ScIrP, which crystallizes in a hexagonal ZrNiAl-type structure without spatial inver…
Rattling and Superconducting Properties of the Cage Compound GaxV2Al20
Zenji Hiroi, Atsushi Onosaka, Yoshihiko Okamoto +2
Low-energy rattling modes and their effects on superconductivity are studied in the cage compound GaxV2Al20. A series of polycrystalline samples of 0 < x =< 0.6 are examined throug…
Giant Phonon Softening and Enhancement of Superconductivity by Phosphorus Doping of BaNi2As2
K. Kudo, M. Takasuga, Y. Okamoto +2
The effects of phosphorus doping on the structural and superconducting phase transitions of BaNi(AsP) were studied. The specific heat, resistivity, and magnetic…
Superconductivity in an Einstein Solid AxV2Al20 (A = Al and Ga)
Atsushi Onosaka, Yoshihiko Okamoto, Jun-ichi Yamaura +1
A cage compound AxV2Al20 (Al10V), that was called an Einstein solid by Caplin and coworkers 40 years ago, is revisited to investigate the low-energy, local vibrations of the A atom…
Superconductivity and Rattling under High Pressure in the beta-Pyrochlore Oxide RbOs2O6
Nao Takeshita, Hiroki Ogusu, Jun-ichi Yamaura +2
Rattling-induced superconductivity in the beta-pyrochlore oxide RbOs2O6 is investigated under high pressures up to 6 GPa. Resistivity measurements in a high-quality single crystal…
Superconducting and Structural Transitions in the β-Pyrochlore Oxide KOs2O6 under High Pressure
Hiroki Ogusu, Nao Takeshita, Koichi Izawa +5
Rattling-induced superconductivity in the β-pyrochlore oxide KOs2O6 is investigated under high pressure up to 5 GPa. Resistivity measurements in a high-quality single crystal revea…
Rattling-Induced Superconductiviy in the Beta-Pyrochlore Oxides AOs2O6
Yohei Nagao, Jun-ichi Yamaura, Hiroki Ogusu +2
The superconducting properties of two beta-pyrochlore oxides, CsOs2O6 and RbOs2O6, are studied by thermodynamic and transport measurements using high-quality single crystals. It is…
Superconductivity in RhGa and IrGa without Inversion Symmetry
T. Shibayama, M. Nohara, H. Aruga Katori +3
Superconductivity with 2 K was discovered in the intermetallic binary compounds RhGa and IrGa. This is the first observation of superconductivi…