Confinement of Interchain Hopping by Umklapp Scattering in Two-Coupled Chains
Strongly Correlated Electrons
2009-10-31 v1
Abstract
The effect of umklapp scattering on interchain hopping has been investigated for two-coupled chains of interacting electrons with half-filled band. By analyzing in terms of renormalization group method, we have found that interchain hopping is renormalized to zero and is confined when a gap induced by umklapp scattering becomes larger than a critical value. From a phase diagram calculated on a plane of the interchain hopping and the gap, we discuss a role of the correlation gap which has been studied in metallic state at temperatures above spin density wave state in organic conductors.
Keywords
Cite
@article{arxiv.cond-mat/9803297,
title = {Confinement of Interchain Hopping by Umklapp Scattering in Two-Coupled Chains},
author = {Y. Suzumura and M. Tsuchiizu and G. Gruner},
journal= {arXiv preprint arXiv:cond-mat/9803297},
year = {2009}
}
Comments
5 pages, 3 figures