Superconductivity and Chemical Composition of the High-T_c Phase (T_c〜111 K) in the Sb-Pb-Bi-Sr-Ca-Cu-O System
スポンサーリンク
概要
- 論文の詳細を見る
A superconducting phase with a critical temperature of 111 K in the Sb-Pb-Bi-Sr-Ca-Cu-O system has been synthesized by means of a long firing period. Its crystal structure is similar to the high-T_c, phase (107 K) in the Pb-Bi-Sr-Ca-Cu-O system, and its average chemical composition is 4.3%, 2.6%, 19.2%, 21.4%, 15.8% and 36.9% for Sb, Pb, Bi, Sr, Ca and Cu, respectively. The summation of the Sb concentration and the Ca concentration is approximately the same for all the samples of this phase, implying that Sb substitutes for Ca, and oxygen atoms are introduced to compensate the oxygen deficiency in the central Cu-O layer sandwiched by the two Ca layers in the crystal structure of the high-T_c phase.
- 社団法人応用物理学会の論文
- 1991-01-15
著者
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Kijima N
Mitsubishi Chemical Corp. Yokohama‐shi
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Kijima Naoto
National Center For Electron Microscopy Materials And Chemical Sciences Division Lawrence Berkeley L
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Kijima Naoto
Department Of Pediatric Dentistry Nihon University School Of Dentistry
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ENDO Hozumi
Research Center, Mitsubishi Kasei Corporation
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OGURI Yasuo
Research Center, Mitsubishi Kasei Corporation
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Zettl Alex
Department Of Physics Univetsity Of California Berkeley And Materials And Chemical Sciences Division
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Endo H
Nihon Univ. Chiba Jpn
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Oguri Yasuo
Research Center Mitsubishi Kasei Corporation
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Gronsky Ronald
National Center for Electron Microscopy, Materials and Chemical Sciences Division, Lawrence Berkeley
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McKernan Stefffen
Department of Physics, Univetsity of California Berkeley and Materials and Chemical Sciences Divisio
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Gronsky Ronald
National Center For Electron Microscopy Materials And Chemical Sciences Division Lawrence Berkeley L
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Mckernan Stefffen
Department Of Physics Univetsity Of California Berkeley And Materials And Chemical Sciences Division
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- Superconductivity and Chemical Composition of the High-T_c Phase (T_c〜111 K) in the Sb-Pb-Bi-Sr-Ca-Cu-O System
- Crystal Structure of the High-T_c Phase (T_c〜111 K)in the Sb-Pb-Bi-Sr-Ca-Cu-O System