Theory of the superconducting proximity effect
Theory of the superconducting proximity effect
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超导邻近效应理论
DOI：
10.1007/bf00120864
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发表时间：
1975
影响因子：
2
通讯作者：
W. Silvert
中科院分区：
文献类型：
--
作者：
W. Silvert
本文用数值变分法对有限厚度两金属薄膜系统的邻近效应的戈尔科夫理论进行了高精度求解。结果进行了分析的背景下，精确的总和规则的戈尔'kov理论和比较从各种近似理论，包括扩散理论。发现对于薄膜，序参数的变化比局部理论预测的要快得多（例如，Ginzburg-Landau），不同的扩散理论是相当不可靠的。
The Gor'kov theory of the proximity effect has been solved to a high degree of accuracy by a numerical variational method for a system of two metallic films of finite thickness. The results are analyzed in the context of exact sum rules for the Gor'kov theory and compared with those obtained from various approximate theories, including diffusion theories. It is found that for thin films the order parameter varies considerably more rapidly than is predicted by local theories (e.g., Ginzburg-Landau) and that the different diffusion theories are quite unreliable.