Spin - glass transition in Kondo lattice with quenched disorder
arXiv:cond-mat/0002277 · doi:10.1134/1.568327
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.
6 pages, jetpl style included, to appear in JETP Letters