Multiband Superconductivity in Spin Density Wave Metals
Superconductivity
2015-05-13 v1 Strongly Correlated Electrons
Abstract
We study the emergence of multiband superconductivity with - and wave symmetry on the background of spin density wave (SDW). We show that the SDW coherence factors renormalize the momentum dependence of the superconducting (SC) gap, yielding a SC state with an \emph{unconventional} s-wave symmetry. Interband Cooper pair scattering stabilizes superconductivity in both symmetries. With increasing SDW order, the s-wave state is more strongly suppressed than the d-wave state. Our results are universally applicable to two-dimensional systems with a commensurate SDW.
Cite
@article{arxiv.0907.1296,
title = {Multiband Superconductivity in Spin Density Wave Metals},
author = {J. -P. Ismer and Ilya Eremin and Enrico Rossi and Dirk K. Morr and G. Blumberg},
journal= {arXiv preprint arXiv:0907.1296},
year = {2015}
}
Comments
4 pages, 3 figures