Spin - glass transition in Kondo lattice with quenched disorder

Details Spin - glass transition in Kondo lattice with quenched disorder Spin - glass transition in Kondo lattice with quenched disorder

2000-02-17

arxiv.org/abs/cond-mat/0002277v1

JETP Lett. 71, 250 (2000)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, jetpl style included, to appear in JETP Letters

Scientific paper

10.1134/1.568327

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.

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