Localization effects and inelastic scattering in disordered heavy electrons
摘要
We study ground state and finite temperature properties of disordered heavy fermion metals by using a generalization of dynamical mean field theory which incorporates Anderson localization effects. The emergence of a non-Fermi liquid metallic behavior even at moderate disorder is shown to be a universal phenomenon resulting from local density of states fluctuations. This behavior is found to have a character of an electronic Griffiths phase, and can be thought of as a precursor of Anderson localization in a strongly correlated host. The temperature dependence of the conducting properties of the system reveal a non-trivial interplay between disorder and inelastic processes, which is reminiscent of the Mooij correlations observed in many disordered metals.
引用
@article{arxiv.cond-mat/0302389,
title = {Localization effects and inelastic scattering in disordered heavy electrons},
author = {M. C. O. Aguiar and E. Miranda and V. Dobrosavljevic},
journal= {arXiv preprint arXiv:cond-mat/0302389},
year = {2007}
}
备注
20 pages, 19 figures