72 citations · 196 across the 6 of their papers we have counts for
6 papers
Copper Doping of BaNiAs: Giant Phonon Softening and Superconductivity Enhancement
Kazutaka Kudo, Masaya Takasuga, Minoru Nohara
The effects of copper doping on the structural and superconducting phase transitions of Ba(NiCu)As were studied by examining the resistivity, magnetic sus…
Enhanced Superconductivity in Close Proximity to the Structural Phase Transition of Sr1-xBaxNi2P2
Kazutaka Kudo, Yutaka Kitahama, Keita Iba +2
The structural evolution and superconductivity of a 122-type solid solution Sr1-xBaxNi2P2 were studied. We found that an orthorhombic-tetragonal structural phase transition takes p…
Superconductivity in Ca10(Ir4As8)(Fe2As2)5 with Square-Planar Coordination of Iridium
Kazutaka Kudo, Daisuke Mitsuoka, Masaya Takasuga +10
We report the unprecedented square-planar coordination of iridium in the iron iridium arsenide Ca10(Ir4As8)(Fe2As2)5. This material experiences superconductivity at 16 K. X-ray pho…
Superconductivity Induced by Breaking Te2 Dimers of AuTe2
Kazutaka Kudo, Hiroyuki Ishii, Masaya Takasuga +5
Mineral calaverite AuTe2 is a layered compound with an incommensurately modulated structure. The modulation is characterized by the formation of molecular-like Te2 dimers. We have…
Emergence of superconductivity at 45 K by lanthanum and phosphorus co-doping of CaFe2As2
Kazutaka Kudo, Keita Iba, Masaya Takasuga +5
Co-doping of lanthanum and phosphorus in CaFe2As2 induces superconductivity at 45 K. This superconducting transition temperature is higher than the 38 K transition in Ba1-xKxFe2As2…
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…