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The exact spectrum of Fermi quasiparticles in Kondo-Anderson ferromagnetic lattice

  • Magnetism and Ferroelectricity
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Abstract

The spectrum of Fermi excitations of a nondegenerate ferromagnetic semiconductor at T=0 with one electron present is investigated in order to describe the electronic structure of manganites with inclusion of strong electron correlations within the Anderson periodic model with s-d exchange interaction. Exact dispersion relations and the Green functions for different spin projections are found. The density-of-states function is calculated for different positions of the d level relative to the band bottom.

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Authors and Affiliations

  1. Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

    S. G. Ovchinnikov & L. Ye. Yakimov

Authors
  1. S. G. Ovchinnikov
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  2. L. Ye. Yakimov
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__________

Translated from Fizika Tverdogo Tela, Vol. 45, No. 8, 2003, pp. 1409–1413.

Original Russian Text Copyright © 2003 by Ovchinnikov, Yakimov.

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Ovchinnikov, S.G., Yakimov, L.Y. The exact spectrum of Fermi quasiparticles in Kondo-Anderson ferromagnetic lattice. Phys. Solid State 45, 1479–1483 (2003). https://doi.org/10.1134/1.1602883

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  • DOI: https://doi.org/10.1134/1.1602883

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