Electronic Correlations Near a Peierls-CDW Transition
Strongly Correlated Electrons
2009-11-07 v1
Abstract
Results of a phenomenological Monte carlo calculation for a 2D electron-phonon Holstein model near a Peierls-CDW transition are presented. Here the zero Matsubara frequency part of the phonon action is dominant and we approximated it by a phenomenological form that as an Ising-like Peierls-CDW transition. The resulting model is studied on a 32 by 32 lattice. The single particle spectral weight A(k,\omega), the density of states N(\omega), and the real part of the conductivity \sigma_1(\omega) all show evidence of a pseudogap which develops in the low-energy electronic degrees of freedom as the Peierls-CDW transition is approached
Cite
@article{arxiv.cond-mat/0111534,
title = {Electronic Correlations Near a Peierls-CDW Transition},
author = {P. Monthoux and D. J. Scalapino},
journal= {arXiv preprint arXiv:cond-mat/0111534},
year = {2009}
}
Comments
14 pages, 7 figures