Spectral Features of the Proximity Effect
Superconductivity
2009-10-31 v1 Mesoscale and Nanoscale Physics
Abstract
We calculate the local density of states (LDOS) of a superconductor-normal metal sandwich at arbitrary impurity concentration. The presence of the superconductor induces a gap in the normal metal spectrum that is proportional to the inverse of the elastic mean free path for rather clean systems. For a mean free path much shorter than the thickness of the normal metal, we find a gap size proportional to that approaches the behavior predicted by the Usadel equation (diffusive limit).
Cite
@article{arxiv.cond-mat/9907483,
title = {Spectral Features of the Proximity Effect},
author = {S. Pilgram and W. Belzig and C. Bruder},
journal= {arXiv preprint arXiv:cond-mat/9907483},
year = {2009}
}
Comments
LT22 proceedings