A Self-Consistent Microscopic Theory of Surface Superconductivity
Condensed Matter
2009-10-22 v1
Abstract
The electronic structure of the superconducting surface sheath in a type-II superconductor in magnetic fields is calculated self-consistently using the Bogoliubov-de Gennes equations. We find that the pair potential exhibits pronounced Friedel oscillations near the surface, in marked contrast with the results of Ginzburg-Landau theory. The role of magnetic edge states is emphasized. The local density of states near the surface shows a significant depletion near the Fermi energy due to the development of local superconducting order. We suggest that this structure could be unveiled by scanning-tunneling microscopy studies performed near the edge of a superconducting sample.
Cite
@article{arxiv.cond-mat/9411099,
title = {A Self-Consistent Microscopic Theory of Surface Superconductivity},
author = {Robert J. Troy and Alan T. Dorsey},
journal= {arXiv preprint arXiv:cond-mat/9411099},
year = {2009}
}
Comments
12 pages, Revtex 3.0, 3 postscript figures appended