Optical Conductivity in Mott-Hubbard Systems
Condensed Matter
2009-10-28 v1
Abstract
We study the transfer of spectral weight in the optical spectra of a strongly correlated electron system as a function of temperature and interaction strength. Within a dynamical mean field theory of the Hubbard model that becomes exact in the limit of large lattice coordination, we predict an anomalous enhancement of spectral weight as a function of temperature in the correlated metallic state and report on experimental measurements which agree with this prediction in . We argue that the optical conductivity anomalies in the metal are connected to the proximity to a crossover region in the phase diagram of the model.
Cite
@article{arxiv.cond-mat/9507002,
title = {Optical Conductivity in Mott-Hubbard Systems},
author = {M. J. Rozenberg and G. Kotliar and H. Kajueter and G. A. Thomas and D. H. Rapkine and J. M. Honig and P. Metcalf},
journal= {arXiv preprint arXiv:cond-mat/9507002},
year = {2009}
}
Comments
12 pages and 4 figures, to appear in Phys. Rev. Lett., v 75, p 105 (1995)