Preparation and Crystallization Process of High-T_c Superconducting Bi, Pb-Sr-Ca-Cu-O Film (T_c=101 K) by Melt-Quenching and Annealing Techniques
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概要
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Thin films (about 1 μm) with the dominant high-T_c phase of Bi,Pb-Sr-Ca-Cu-O have been prepared by pyrolysis (melt-quenching and postannealing) of 2-ethylhexanoates. The critical temperature T_c was approximately 101 K for the specimen annealed at 850℃ for 10 h. It was found that annealing conditions (annealing temperature and atmosphere) are effective in increasing the volume fraction, which was determined by X-ray diffraction, of the high-T_c phase (Bi_<2-x>Pb_xSr_2Ca_2Cu_3O_y). It was suggested that the high-T_c phase on a MgO(100) substrate is thermally a stable phase at 850℃.
- 社団法人応用物理学会の論文
- 1990-05-20
著者
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OSAKA Yukio
Department of Electrical Engineering, Hiroshima University
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Osaka Yukio
Department Of Electrical Engineering Hiroshima University
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Osaka Yukio
Department Of Electrical Engineering Faculty Of Engineering Hiroshima University
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IBARA Yoshikazu
Department of Electrical Engineering, Faculty of Engineering, Hiroshima University
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Ibara Y
Department Of Electrical Engineering Hiroshima University
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INOUE Katsuto
Department of Electrical Engineering, Hiroshima University
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Inoue Katsuto
Department Of Electrical Engineering Hiroshima University
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