The Effect of Ca_2PbO_4 Addition on Superconductivity in a Bi-Sr-Cu-O System
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概要
- 論文の詳細を見る
We examined the effect of Ca_2PbO_4 addition on superconductivity in a Bi-Sr-Cu-O system. We determined that Ca_2PbO_4 is formed in Bi-Pb-Sr-Ca-Cu-O at temperatures lower than 750℃ on the basis of powder X-ray diffraction and micro-Raman scattering. A high-T_c phase was synthesized by adding Ca_2PbO_4 to the Bi-Sr-Cu-O system which has a single CuO layer. It seems that the synthesis process of the high-T_c phase is based on a reaction between the low-T_c structure and Ca^<2+> in the liquid phase which is caused by decomposition of Ca_2PbO_4 at 822℃.
- 社団法人応用物理学会の論文
- 1989-01-20
著者
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Niwa K
Fujitsu Laboratories Ltd.
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Niwa Koichi
Fujitsu Laboratories Limited.
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Yamanaka Kazunori
Fujitsu Laboratories Ltd.
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Kamehara N
Fujitsu Lab. Ltd. Atsugi‐shi
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Kamehara Nobuo
Fujitsu Laboratories Ltd.
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Uzumaki Takuya
Fujitsu Laboratories Ltd.
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Uzumaki T
Fujitsu Lab. Ltd. Kanagawa Jpn
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Kamehara Nobuo
Fujitsu Laboratories Limited, 10-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0197, Japan
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