Determination of the Orthorhombic-Tetragonal YBa_2Cu_3O_<7-δ> Phase Boundary in the δ-T Diagram
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概要
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The orthorhombic-tetragonal YBa_2Cu_3O_<7-δ> phase boundary in the δ-T diagram was determined by a detailed isobar TG measurement under the oxygen partial pressures of 1 to 0.01 atm. The phase boundary was found not to be located at δ=const., but to have a slope of dδ/dT〜-4.7×10^<-4> K^<-1>. The experimental results are discussed with a simple order-disorder transformation model of oxygen atoms on the Cu plane sandwiched by Ba planes.
- 社団法人応用物理学会の論文
- 1987-11-20
著者
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KUBO Yoshimi
Fundamental Research Laboratories, NEC Corporation
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YOSHITAKE Tsutomu
Fundamental Research Laboratories, NEC Corporation
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UTSUMI Kazuaki
Fundamental Research Laboratories, NEC Corporation
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Kubo Yoshimi
Fundamental Res. Labs. Nec Corp.
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NAKABAYASHI Yukio
Department of Electronics and Electrical Engineering, Keio University
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Ochi A
Nec Corp. Kawasaki Jpn
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Ochi Atsushi
Fundamental Research Laboratories Nec Corporation
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Ochi Atsushi
Fundamental Res. Labs.
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Utsumi K
Nec Corp. Kawasaki
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Utsumi Kazuaki
Fundamental Research Laboratories Nec Corporation
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IGARASHI Hitoshi
Fundamental Research Laboratories, NEC Corporation
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NAKABAYASHI Yukinobu
Fundamental Research Laboratories, NEC Corporation
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TABUCHI Junji
Fundamental Research Laboratories, NEC Corporation
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YONEZAWA Masatomo
Fundamental Research Laboratories, NEC Corporation
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YOSHITAKE Tsutomu
the Fundamental Research Laboratories, NEC Corporation
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Yoshitake T
The Fundamental Research Laboratories Nec Corporation
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Yoshitake Tsutomu
Fundamental Research Laboratories Nec Corporation
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Kubo Y
Ricoh Co. Ltd. Kanagawa Jpn
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Tabuchi J
Fundamental Research Laboratories Nec Corporation
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Tabuchi Junji
Fundamental Research Laboratories Nec Corporation
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Igarashi H
Fundamental Research Laboratories Nec Corporation
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Igarashi Hitoshi
Fundamental Research Laboratories Nec Corporation
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Yonezawa M
Fundamental Research Laboratories Nec Corporation
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Yonezawa Masatomo
Fundamental Res. Labs.
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Nakabayashi Y
Department Of Electronics And Electrical Engineering Keio University
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Nakabayashi Yukinobu
Fundamental Research Laboratories Nec Corporation
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