Spin-triplet s-wave local pairing induced by Hund's rule coupling
Strongly Correlated Electrons
2009-11-10 v1 Superconductivity
Abstract
We show within the dynamical mean field theory that local multiplet interactions such as Hund's rule coupling produce local pairing superconductivity in the strongly correlated regime. Spin-triplet superconductivity driven by the Hund's rule coupling emerges from the pairing mediated by local fluctuations in pair exchange. In contrast to the conventional spin-triplet theories, the local orbital degrees of freedom has the anti-symmetric part of the exchange symmetry, leaving the spatial part as fully gapped and symmetric s-wave.
Keywords
Cite
@article{arxiv.cond-mat/0401104,
title = {Spin-triplet s-wave local pairing induced by Hund's rule coupling},
author = {J. E. Han},
journal= {arXiv preprint arXiv:cond-mat/0401104},
year = {2009}
}
Comments
9 pages, 7 figures