New Formula for Maximum DC Josephson Current in Asymmetrical Junction
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概要
- 論文の詳細を見る
A new formula for the maximum dc Josephson current J.(T) of asynunetrical junction is derived, taking account of the effect of self-induced field due to the persistent current in terms of the boson theory. The formula can explain the tem-perature dependence of J*(T) observed ip the thin filrn junctions which show the considerable deviation from the prediction of the Ambegaokar-Baratoff theory. Good agreements are obtained by using the appropriate values of the film thick-nesses, the London penetration depths and Ginzburg-Landau parameters of the films, used in the experiments. Comparisons with proximity~;ffect junctions are also reported.
- 一般社団法人日本物理学会の論文
- 1981-10-15
著者
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Yamashita Kazuhiko
Department Of Agricultural Sciences Faculty Of Agriculture Okayama University
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YAMASHITA Kazuhiko
Department of Electrical Engineering, Waseda University
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