Spectral flow in superconducting point contacts
Superconductivity
2007-05-23 v2 Mesoscale and Nanoscale Physics
Abstract
We find that multiple Andreev reflections mediating the transport in superconducting point contacts are strongly affected by a small amount of impurities in the area of the contact. We also argue that the model based on Zener transitions within independent conducting channels is not suitable for kinetic processes in multichannel contacts.
Keywords
Cite
@article{arxiv.cond-mat/0112265,
title = {Spectral flow in superconducting point contacts},
author = {N. B. Kopnin and V. M. Vinokur},
journal= {arXiv preprint arXiv:cond-mat/0112265},
year = {2007}
}
Comments
Revised version. To be published in Europhysics Letters