Local mode behaviour in quasi-1D CDW systems
Strongly Correlated Electrons
2009-10-31 v1
Abstract
We analyze numerically the ground-state and spectral properties of the three-quarter filled Peierls-Hubbard Hamiltonian. Various charge- and spin-ordered states are identified. In the strong-coupling regime, we find clear signatures of local lattice distortions accompanied by intrinsic multi-phonon localization. The results are discussed in relation to recent experiments on MX chain [-PtCl-] complexes. In particular we are able to reproduce the observed red shift of the overtone resonance Raman spectrum.
Cite
@article{arxiv.cond-mat/9910093,
title = {Local mode behaviour in quasi-1D CDW systems},
author = {H. Fehske and G. Wellein and H. Büttner and A. R. Bishop and M. I. Salkola},
journal= {arXiv preprint arXiv:cond-mat/9910093},
year = {2009}
}
Comments
2 pages, 2 figures, Proceedings Yamada Conference on Strongly Correlated Electron Systems, Nagana, Japan 1999