Resistivity saturation revisited: results from a dynamical mean field theory
Strongly Correlated Electrons
2009-10-31 v2 Materials Science
Abstract
We use the dynamical mean field method to study the high-temperature resistivity of electrons strongly coupled to phonons. The results reproduce the qualtiative behavior of the temperature and disorder dependence of the resistivity of the 'A-15' materials, which is commonly described in terms of saturation, but imply that the resistivity does not saturate. Rather, a change in temperature dependence occurs when the scattering becomes strong enough to cause a breakdown of the Migdal approximation.
Keywords
Cite
@article{arxiv.cond-mat/9808188,
title = {Resistivity saturation revisited: results from a dynamical mean field theory},
author = {A. J. Millis and Jun Hu and Sankar Das Sarma},
journal= {arXiv preprint arXiv:cond-mat/9808188},
year = {2009}
}
Comments
Minor revisions in response to referee report; latex error corrected so paper prints properly