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Stabilization of high-Tc phase of BiS2-based superconductor LaO0.5F0.5BiS2 using high-pressure synthesis
Yoshikazu Mizuguchi, Takafumi Hiroi, Joe Kajitani +3
High-quality polycrystalline samples of LaO0.5F0.5BiS2 were obtained using high-pressure synthesis technique. The LaO0.5F0.5BiS2 sample prepared by heating at 700 C under 2 GPa sho…
Correlation between crystal structure and superconductivity in LaO0.5F0.5BiS2
Joe Kajitani, Keita Deguchi, Atsushi Omachi +6
Correlation between crystal structure and superconducting properties of the BiS2-based superconductor LaO0.5F0.5BiS2 was investigated. We have prepared LaO0.5F0.5BiS2 polycrystalli…
Bulk superconductivity in Bi4O4S3 revealed by specific heat measurement
Hiroshi Takatsu, Yoshikazu Mizuguchi, Hiroki Izawa +2
Specific heat experiments on a well-characterized polycrystalline sample of the BiS2 based superconductor Bi4O4S3 revealed that it shows a crear specific heat anomaly at about Tc =…
Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction
Yoshikazu Mizuguchi, Kentaro Hamada, Kazuki Goto +3
The low-temperature crystal structure of Fe1.13Te, which exhibits an anomalous two-step magnetic transition, was clarified by the systematic x-ray diffraction measurements. It was…