K
Keita Deguchi
Researcher at National Institute for Materials Science
Publications - 73
Citations - 3354
Keita Deguchi is an academic researcher from National Institute for Materials Science. The author has contributed to research in topics: Superconductivity & Iron-based superconductor. The author has an hindex of 29, co-authored 73 publications receiving 3202 citations. Previous affiliations of Keita Deguchi include University of Tsukuba.
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Journal ArticleDOI
Anion height dependence of Tc for the Fe-based superconductor
Yoshikazu Mizuguchi,Yoshikazu Mizuguchi,Y. Hara,Keita Deguchi,Keita Deguchi,Shunsuke Tsuda,Takahide Yamaguchi,K. Takeda,Hisashi Kotegawa,Hideki Tou,Yoshihiko Takano,Yoshihiko Takano +11 more
TL;DR: In this article, the authors established a plot of the anion height dependence of superconducting transition temperature Tc for the typical Fe-based superconductors and showed a symmetric curve with a peak around 1.38??.
Journal ArticleDOI
Superconductivity in Novel BiS2-Based Layered Superconductor LaO1-xFxBiS2
Yoshikazu Mizuguchi,Yoshikazu Mizuguchi,Satoshi Demura,Keita Deguchi,Yoshihiko Takano,Hiroshi Fujihisa,Yoshito Gotoh,Hiroki Izawa,Osuke Miura +8 more
TL;DR: In this paper, a new type of BiS 2 -based layered superconductor LaO 1- x F x BiS2, with a T c as high as 10.6 K, was reported.
Journal ArticleDOI
New Member of BiS2-Based Superconductor NdO1-xFxBiS2
Satoshi Demura,Satoshi Demura,Yoshikazu Mizuguchi,Yoshikazu Mizuguchi,Keita Deguchi,Keita Deguchi,Hiroyuki Okazaki,Hiroshi Hara,Hiroshi Hara,Tohru Watanabe,Tohru Watanabe,S. J. Denholme,S. J. Denholme,Masaya Fujioka,Toshinori Ozaki,Hiroshi Fujihisa,Yoshito Gotoh,Osuke Miura,Takahide Yamaguchi,Hiroyuki Takeya,Yoshihiko Takano,Yoshihiko Takano +21 more
TL;DR: In this article, a new BiS2-based superconductor NdOBiS2 was synthesized by F doping, which is composed of superconducting BiS 2 layers and blocking NdO layers.
Journal ArticleDOI
Pressure Study of BiS2-Based Superconductors Bi4O4S3 and La(O,F)BiS2
Hisashi Kotegawa,Yusuke Tomita,Hideki Tou,Hiroki Izawa,Yoshikazu Mizuguchi,Osuke Miura,Satoshi Demura,Keita Deguchi,Yoshihiko Takano +8 more
TL;DR: In this paper, the electrical resistivity measurements under pressure for the recently discovered BiS 2 -based layered superconductors Bi 4 O 4 S 3 and La(O,F)BiS 2 were reported.
Journal ArticleDOI
Fabrication of the Iron-Based Superconducting Wire Using Fe(Se,Te)
Yoshikazu Mizuguchi,Yoshikazu Mizuguchi,Keita Deguchi,Keita Deguchi,Shunsuke Tsuda,Takahide Yamaguchi,Hiroyuki Takeya,Hiroaki Kumakura,Hiroaki Kumakura,Yoshihiko Takano,Yoshihiko Takano +10 more
TL;DR: In this article, a powder-in-tube (PIT) method was used to synthesize the superconducting phases of the Fe(Se,Te) wire, and zero resistivity current was observed on the current?voltage measurements.