Open AccessJournal Article
X-Ray Absorption Spectra of High T_c Superconducting Sr_xLa_ CuO_
Hiroyuki Oyanagi,Hideo Ihara,Tadashi Matsushita,Madoka Tokumoto,Masayuki Hirabayashi,Norio Terada,Kiyoshi Senzaki,Yoichi Kimura,Takafumi Yao +8 more
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This article is published in Japanese Journal of Applied Physics.The article was published on 1987-04-20 and is currently open access. It has received 17 citations till now. The article focuses on the topics: Absorption spectroscopy.read more
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Valence Study of Orthorhombic and Tetragonal Ba2YCu3Oy: The Role of Oxygen Vacancies in High-Tc Superconductivity
Hiroyuki Oyanagi,Hideo Ihara,Toshiya Matsubara,Madoka Tokumoto,Tadashi Matsushita,Masayuki Hirabayashi,Keizo Murata,Norio Terada,Takafumi Yao,Hiroshi Iwasaki,Yoichi Kimura +10 more
TL;DR: In this article, the valency of Cu ions in the orthorhombic and tetragonal phases of high-Tc superconductor Ba2YCu3Oy (6.22
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Determination of nonstoichiometry in YBa2Cu3O7−x
TL;DR: Oxygen nonstoichiometry of the YBa2Cu3O7-x phase has been determined for between 200 to 850°C and oxygen partial pressure of 10 to 30×10-4 atm by thermogravimetric measurements.
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Magnetic shielding using high-Tcsuperconductor
TL;DR: In this article, the magnetic shielding has been investigated by measuring magnetic coupling between primary and secondary coils separated by a high-Tc superconductor, which can explain the existence of superconductivity related surface current, which flows out from front to rear surface to couple with the secondary coil.
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Superconductivity in YBa2Cu3O7-δ Thick Films by the Atmospheric Plasma Powder Spraying
TL;DR: In this paper, a thin Y-Ba-Cu-O (e.g. 70 µm) film was prepared on Ni alloy substrates at various temperatures by the atmospheric plasma powder spraying method.
Journal ArticleDOI
Superconductivity, Structure and Oxygen Content of Fe-Doped Ba2YCu3Oy
Haruhiko Obara,Hiroyuki Oyanagi,Keizo Murata,Hirofumi Yamasaki,Hideo Ihara,Madoka Tokumoto,Yoshikazu Nishihara,Yoichi Kimura +7 more
TL;DR: In this article, the superconducting transition temperature of Ba2Y(Cu1-xFex)3Oy has been studied along with its compositional analysis, especially that of oxygen.