High-T_c Superconductivity in Copper Oxide Compounds

島根医科大学紀要 10 巻 41-49 頁 1987-12-01 発行
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タイトル
High-T_c Superconductivity in Copper Oxide Compounds
著者
田口 功
収録物名
島根医科大学紀要
Bulletin of Shimane Medical University
10
開始ページ 41
終了ページ 49
収録物識別子
ISSN 03879097
内容記述
抄録・要旨
The effect of substitution of Sr, Cs, Zn, Ni, P, Cl, S, Se or I for Y, Ba, Cu or 0 on the superconducting transition in the Y-Ba-Cu-0 system has been investigated. It was found that the partial replacement of Cu by Ni or Zn strongly depresses the superconducting transition temperature. An extremely sharp transition was observed in YBa_2Cu_30_y/ samples when they were sintered in iodine gas and then annealed in air or flowing oxygen. The result suggests that the Cu and 0 ions play important roles in the occurrence of the high-T_c superconductivity. An anomalous resistivity change, reminiscent of a superconducting transition, was observed around 180 K in a YBa_2Cu_30_y sample which was sintered in selenium gas followed by annealing in oxygen gas.
主題
high-Te superconductivity
Y-Ba-Cu-O system
substitution effect
言語
英語
資源タイプ 紀要論文
出版者
島根医科大学
発行日 1987-12-01
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
関連情報
[NCID] AN00107602