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物理学报. 1977, 26(5): 411-416.
doi: 10.7498/aps.26.411.
超导桥约瑟夫森效应的微观理论
- 收稿日期: 1976-07-26
- 刊出日期: 2005-08-01
摘要: 用格林函数方法及两个桥区能隙模型,证明了超导Dayem桥的经验公式j=Σn jn·sin(nφ),并且定量地解释了实验上观察到的微波感应阶梯高度。本文还给出了超导桥经验公式的充分条件,并讨论了约瑟夫森电流密度和桥长度的关系。
English Abstract
A MICROSCOPIC THEORY OF THE JOSEPHSON EFFECT IN SUPERCONDUCTING BRIDGES
- Received Date:
26 July 1976
- Published Online:
01 August 2005
Abstract: The empirical formula j=Σn jnsin nφ for a superconducting Dayem bridge is proved using Green's function and the two-gap model of the bridge. A quantitative explanation for the observed height of the microwave induced step is presented. This paper also gives the sufficient condition for the empirical formula of a superconduc-ting bridge, and the dependence of Josephson current density on bridge length is discussed.
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