The Study Of Critical Current In Ybacuo Thin-Films
JOURNAL OF APPLIED PHYSICS(1988)
摘要
The magnetron sputtering method has been used for fabricating YBa2Cu3O7−y superconducting thin films. Their critical current and superconducting phase with relation to temperature have been investigated. Experimental results show, for some samples, the proportionality between critical current Ic and temperature as (1−T/Tc)3/2 in the vicinity of Tc and the typical proximity tunneling effect. While at temperatures much lower than Tc, the current-temperature relation corresponds well with the Ambegaokar–Baratoff theory.
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关键词
proximity effect,magnetron sputtering,thin film
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