Density of States in Superconductor - Normal Metal - Superconductor Junctions
Mesoscale and Nanoscale Physics
2009-10-30 v2 Superconductivity
Abstract
We consider the chi_0 dependence of the density of states inside the normal metal of a superconductor - normal metal - superconductor (SNS) junction.Here chi_0 is the phase difference of two superconductors of the junction. It is shown that in the absence of electron-electron interaction the energy dependence of the density of states has a gap which decreases as chi_0 increases and closes at chi_0= pi. Both the analytical expressions for the chi_0 dependence of the density of states and the results of numerical simulations are presented.
Keywords
Cite
@article{arxiv.cond-mat/9707056,
title = {Density of States in Superconductor - Normal Metal - Superconductor Junctions},
author = {F. Zhou and P. Charlat and B. Spivak and B. Pannetier},
journal= {arXiv preprint arXiv:cond-mat/9707056},
year = {2009}
}
Comments
7 pages with 4 included epsf figures, published version with small changes