Quasiparticle conductivities in disordered d-wave superconductors
Superconductivity
2009-11-07 v1 Disordered Systems and Neural Networks
Statistical Mechanics
Abstract
We study the quasiparticle transport coefficients in disordered d-wave superconductors. We find that spin and charge excitations are generally localized unless magnetic impurities are present. If the system is close to a nesting point in the impurity-scattering unitary limit, the tendency towards localization is reduced while the quasiparticle density of states gets enhanced by disorder. We also show that the residual repulsive interaction among quasiparticles has a delocalizing effect and increases the density of states.
Cite
@article{arxiv.cond-mat/0108035,
title = {Quasiparticle conductivities in disordered d-wave superconductors},
author = {Michele Fabrizio and Luca Dell'Anna and Claudio Castellani},
journal= {arXiv preprint arXiv:cond-mat/0108035},
year = {2009}
}
Comments
13 pages, no figures