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Spin-phonon interactions in heterophase ferromagnets

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  • Yukalov, V.I.

Abstract

The combined influence of heterophase fluctuations and phonon excitations on lattice and magnetic properties of ferromagnets is investigated. A new procedure for introducing phonon variables preserving the translational symmetry is developed. Spin variables are treated in the ter Haar approximation and in the mean-field approximation. The renormalization of the sound velocity due to both spin-phonon coupling and heterophase fluctuations is obtained; the latter are found by numerical estimates to be more important near the critical point than the former. The Mössbauer-effect probability is calculated and its anomalous sagging near transition points is explained.

Suggested Citation

  • Yukalov, V.I., 1989. "Spin-phonon interactions in heterophase ferromagnets," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 155(3), pages 519-544.
    • Handle: RePEc:eee:phsmap:v:155:y:1989:i:3:p:519-544
    DOI: 10.1016/0378-4371(89)90004-6
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    References listed on IDEAS

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    1. Sherman Maisel, 1976. "Introduction to "Explorations in Economic Research, Volume 3, number 2 (Conference on International Trade, Finance, and Development of Pacific Basin Countries, December 6-7, 1974"," NBER Chapters, in: Explorations in Economic Research, Volume 3, number 2, pages 159-162, National Bureau of Economic Research, Inc.
    2. Sioma Kagan, 1964. "Business Decisions in a Changing International Scene," Challenge, Taylor & Francis Journals, vol. 12(10), pages 14-17, August.
    3. Yukalov, V.I., 1980. "Bose condensation in strongly monideal systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 100(2), pages 431-442.
    4. Yukalov, V.I., 1981. "Statistical theory of heterophase fluctuations," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 108(2), pages 402-416.
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