发明授权
- 专利标题: Superconducting thin film having a matrix and foreign phases
- 专利标题(中): 超薄薄膜有一个矩阵和外部相位
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申请号: US623477申请日: 1990-12-07
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公开(公告)号: US5212151A公开(公告)日: 1993-05-18
- 发明人: Satoshi Takano , Shigeru Okuda , Noriyuki Yoshida , Tsukushi Hara , Kiyoshi Okaniwa , Takahiko Yamamoto
- 申请人: Satoshi Takano , Shigeru Okuda , Noriyuki Yoshida , Tsukushi Hara , Kiyoshi Okaniwa , Takahiko Yamamoto
- 申请人地址: JPX Osaka
- 专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX1-318252 19891207; JPX1-326727 19891215
- 主分类号: C23C14/08
- IPC分类号: C23C14/08 ; C23C14/28 ; H01L39/24
摘要:
An oxide superconducting thin film formed by laser ablation comprises a matrix formed of c-axis oriented superconducting phases and foreign phases which are different in crystal orientation from the matrix. In order to improve critical current density of the oxide superconducting thin film, preferably selected are such conditions that the size of each superconducting phase in its a-b plane is not more than 0.1 .mu.m in diameter, the size of each superconducting phase along its c-axis direction is equal to the thickness of the oxide superconducting thin film, the foreign phases at least partially pass through the oxide superconducting thin film along the direction of thickness, the size of each foreign phase is at least 0.01 .mu.m and not more than 5 .mu.m in diameter, each foreign phase has an a-axis or a c-axis perpendicularly oriented with respect to the major surface of the oxide superconducting thin film, and the like.
公开/授权文献
- US4573570A Taco support 公开/授权日:1986-03-04