Journal of Low Temperature Physics

, Volume 26, Issue 3–4, pp 637–657 | Cite as

Magnetic impurity ordering in dilute alloys

  • Yu. M. Ivanchenko
  • A. A. Lisyanskii
Article

Abstract

The interaction of conduction electrons with the ordered system of magnetic impurities randomly distributed in a normal metal is investigated in terms of the s-d exchange model. In the calculation of the electronic self-energy part the most divergent terms are summed. The internal exchange field arising due to the impurity ordering is determined in a self-consistent manner. It is shown that in the system under investigation the electron spectrum is greatly renormalized; in particular, the effective mass on the Fermi surface and also the low-temperature electronic heat capacity become several times larger. The addition to the electronic heat capacity has a broad temperature maximum and depends on the impurity concentration. The concentration and temperature dependences are qualitatively in good agreement with the experimental results. The mechanism responsible for the appearance of the long-range ferromagnetic interaction is also discussed.

Keywords

Heat Capacity Magnetic Material Conduction Electron Effective Mass Electron Spectrum 

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Copyright information

© Plenum Publishing Corporation 1977

Authors and Affiliations

  • Yu. M. Ivanchenko
    • 1
  • A. A. Lisyanskii
    • 1
  1. 1.Donetsk Physico-Technical Institute of the Academy of Sciences of the Ukrainian SSRDonetskUSSR

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