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arXiv · 1312.2438

Pseudofermion ferromagnetism in the Kondo lattices: a mean-field approach

V. Yu. Irkhin
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Abstract

Ground state ferromagnetism of the Kondo lattices is investigated within slave fermion approach by Coleman and Andrei within a mean-field approximation in the effective hybridization model. Conditions for formation of both saturated (half-metallic) and non-saturated magnetic state are obtained for various lattices. A description in terms of universal functions which depend only on bare electron density of states (DOS) is presented. A crucial role of the energy dependence of the bare DOS (especially, of DOS peaks) for the small-moment ferromagnetism formation is demonstrated.

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V. Yu. Irkhin. 2014-04-15. Pseudofermion ferromagnetism in the Kondo lattices: a mean-field approach. https://doi.org/10.1140/epjb%2Fe2014-50007-7

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