Spin-triplet superconductivity in repulsive Hubbard models with disconnected Fermi surfaces: a case study on triangular and honeycomb lattices
Strongly Correlated Electrons
2009-10-31 v1
Abstract
We propose that spin-fluctuation-mediated spin-triplet superconductivity may be realized in repulsive Hubbard models with disconnected Fermi surfaces. The idea is confirmed for Hubbard models on triangular (dilute band filling) and honeycomb (near half-filling) lattices using fluctuation exchange approximation, where triplet pairing order parameter with f-wave symmetry is obtained. Possible relevance to real superconductors is suggested.
Keywords
Cite
@article{arxiv.cond-mat/0004381,
title = {Spin-triplet superconductivity in repulsive Hubbard models with disconnected Fermi surfaces: a case study on triangular and honeycomb lattices},
author = {Kazuhiko Kuroki and Ryotaro Arita},
journal= {arXiv preprint arXiv:cond-mat/0004381},
year = {2009}
}
Comments
5 pages, 6 figures, RevTeX, uses epsf.sty and multicol.sty