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VOLUME 71 (2000) | ISSUE 6 | PAGE 359
Spin-glass transition in Kondo lattice with quenched disorder
PACS: 71.27.+a, 75.20.Hr
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-Iike 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.