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Electron Transport in Mesoscopic Disordered SNS Junctions

Athanassios Bardas·Dmitri V. Averin
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Abstract

We have generalized the scattering-matrix theory of multiple Andreev reflections in mesoscopic Josephson junctions to the multi-mode case, and applied it to short superconductor/normal metal/superconductor junctions with diffusive electron transport. Both the dc and ac current-voltage characteristics are analyzed for a wide range of bias voltages $V$. For voltages smaller than the supeconducting gap the dc differential conductance of the junction diverges as $1/\sqrt{V}$.

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Athanassios Bardas, Dmitri V. Averin. 1997-06-10. Electron Transport in Mesoscopic Disordered SNS Junctions. https://arxiv.org/abs/cond-mat/9706087

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