Spin - glass transition in Kondo lattice with quenched disorder
Strongly Correlated Electrons
2009-10-31 v1 Disordered Systems and Neural Networks
Abstract
We use the Popov-Fedotov representation of spin operators to construct an effective action for a Kondo lattice model with quenched disorder at finite temperatures. We study the competition between the Kondo effect and frozen spin order in Ising-like spin glass. We present the derivation of new mean-field equations for the spin-glass order parameter and analyze the effects of screening of localized spins by conduction electrons on the spin-glass phase transition.
Cite
@article{arxiv.cond-mat/0002277,
title = {Spin - glass transition in Kondo lattice with quenched disorder},
author = {M. N. Kiselev and R. Oppermann},
journal= {arXiv preprint arXiv:cond-mat/0002277},
year = {2009}
}
Comments
6 pages, jetpl style included, to appear in JETP Letters