Non-Fermi Liquid Behavior and Double-Exchange Physics in Orbital-Selective Mott Systems
Strongly Correlated Electrons
2009-11-11 v2
Abstract
We study a multi-band Hubbard model in its orbital selective Mott phase, in which localized electrons in a narrow band coexist with itinerant electrons in a wide band. The low-energy physics of this phase is shown to be closely related to that of a generalized double-exchange model. The high-temperature disordered phase thus differs from a Fermi liquid, and displays a finite scattering rate of the conduction electrons at the Fermi level, which depends continuously on the spin anisotropy.
Cite
@article{arxiv.cond-mat/0505737,
title = {Non-Fermi Liquid Behavior and Double-Exchange Physics in Orbital-Selective Mott Systems},
author = {S. Biermann and L. de' Medici and A. Georges},
journal= {arXiv preprint arXiv:cond-mat/0505737},
year = {2009}
}
Comments
5 pages, minor typos corrected