Nonlinear current response of one- and two-band superconductors
Superconductivity
2009-11-11 v1 Strongly Correlated Electrons
Abstract
We have calculated the nonlinear current of a number of single band s-wave electron-phonon superconductors. Among issues considered were those of dimensionality, strong electron-phonon coupling, impurities, and comparison with BCS. For the case of two bands, particular attention is paid to the role of anisotropy, the integration effects of the off-diagonal electron-phonon interaction, as well as inter- and intraband impurities. For the specific case of MgB2, we present results based on the known microscopic parameters of band theory.
Cite
@article{arxiv.cond-mat/0510250,
title = {Nonlinear current response of one- and two-band superconductors},
author = {E. J. Nicol and J. P. Carbotte and D. J. Scalapino},
journal= {arXiv preprint arXiv:cond-mat/0510250},
year = {2009}
}
Comments
10 pages, 6 figures