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Impurity band in clean superconducting weak links

N. B. Kopnin
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Abstract

Weak impurity scattering produces a narrow band with a finite density of states near the phase difference $ϕ=π$ in the mid-gap energy spectrum of a macroscopic superconducting weak link. The equivalent distribution of transmission coefficients of various cunducting quantum channels is found.

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N. B. Kopnin. 2001-11-27. Impurity band in clean superconducting weak links. https://doi.org/10.1103/physrevb.65.132503

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