Electronic Correlations Near a Peierls-CDW Transition

Details Electronic Correlations Near a Peierls-CDW Transition Electronic Correlations Near a Peierls-CDW Transition

2001-11-28

arxiv.org/abs/cond-mat/0111534v1

Physics

Condensed Matter

Strongly Correlated Electrons

14 pages, 7 figures

Scientific paper

10.1103/PhysRevB.65.235104

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

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