Preparation of superconductive films by fume pyrolysis.
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概要
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Superconductive films composed of Ba<SUB>2</SUB>YCu<SUB>3</SUB>O<SUB>7−δ</SUB> were prepared by fume pyrolysis with a temperature programmed electric furnace. Fumes generated from an aqueous solution of Ba, Y, and Cu nitrates with an aid of supersonicant were introduced into the furnace with flowing O<SUB>2</SUB>. Fine particles consisting of Ba, Y, and Cu ions were formed in the furnace and deposited on the surface of a YSZ substrate placed at the top of the furnace. Films thus prepared and annealed at 1273 K showed superconductive properties below 90 K and zero resistivity was observed at 80 K with 100 μA of the current.
- 公益社団法人 日本化学会の論文
著者
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Koyama Kuniyuki
Department Of Elebtronical Engineering And Elebtronics Toyohashi University Of Technology
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KAKUTA Noriyoshi
Department of Materials Sci., oyohashi University of Technol
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Suzuki Yasuji
Department Of Electrical And Electronic Engineering Toyohashi University Of Technology
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Ogawa Takao
Department Of Operative Dentistry Kyushu Dental College
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Noguchi Seiichiro
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Miki Takeshi
Department 2, Optical Disc Development Division, AV/IT Development Group, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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Ueno Akifumi
Department of Chemistry, The University of Tokyo
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Tsuiki Hideyasu
Department of Materials Science, Toyohashi University of Technology
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Yamada Seiji
Department of Applied Chemistry, Faculty of Engineering, Kansai University
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Suzuki Yasuji
Department of Electronic Engineering, Toyohashi University of Technology
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Yamada Mamoru
Government Institute for Industry at Nagoya
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Yamada Seiji
Department of Materials Science, Toyohashi University of Technology
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