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Thermodynamics of a quasi-two-dimensional heisenberg ferromagnet with single-ion anisotropy

  • Physics of Magnetic Phenomena
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Abstract

A quasi-two-dimensional ferromagnet (S = 1) with easy axis type anisotropy and interplanar exchange J and intraplanar exchange K is examined within the framework of the spin-wave approximation. An expression for the Curie temperature that is dependent on both the anisotropy parameter D (D/J ≫ 1) and on the exchange parameter ratio λ=K/J is obtained from the self-consistent equations. The important role of the single-ion anisotropy in the formation of the long-range magnetic order in two-dimensional systems is shown.

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Authors and Affiliations

  1. Krasnoyarsk State University, USSR

    E. V. Kuz'min & G. A. Petrakovskii

Authors
  1. E. V. Kuz'min
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  2. G. A. Petrakovskii
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 94–101, March, 1988.

The authors are grateful to S. S. Aplesnin for performing all the numerical computations and to I. S. Sandalov and A. F. Sadreev for useful discussions.

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Kuz'min, E.V., Petrakovskii, G.A. Thermodynamics of a quasi-two-dimensional heisenberg ferromagnet with single-ion anisotropy. Soviet Physics Journal 31, 256–262 (1988). https://doi.org/10.1007/BF00898235

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  • DOI: https://doi.org/10.1007/BF00898235

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