发明名称 |
SUPERCONDUCTING THIN FILM HAVING A MATRIX AND FOREIGN PHASES |
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.
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申请公布号 |
US5212151(A) |
申请公布日期 |
1993.05.18 |
申请号 |
US19900623477 |
申请日期 |
1990.12.07 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
TAKANO, SATOSHI;OKUDA, SHIGERU;YOSHIDA, NORIYUKI;HARA, TSUKUSHI;OKANIWA, KIYOSHI;YAMAMOTO, TAKAHIKO |
分类号 |
C23C14/08;C23C14/28;H01L39/24 |
主分类号 |
C23C14/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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