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Theory of the magnon-phonon interaction in magnetic field induced ferromagnet

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Zeitschrift für Physik B Condensed Matter

Abstract

The dependence of the elementary excitation energies and sound velocities on the magnetoelastic coupling and the magnetic field strength has been theoretically investigated in field-induced ferromagnets.

It has been shown that near the field intensities, where the long range magnetic order appears, the acoustic quasi-phonon velocities and, in consequence, some elastic constants turn to zero. Such a behaviour has been interpreted as result of a structural phase transition.

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Author notes

  1. L. Biegaŀa

    Present address: Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-7000, Stuttgart 80

Authors and Affiliations

  1. Institute for Low Temperature and Structure Research, Polish Academy of Sciences, PL. Katedralny 1, PL-50-950, Wrocław, Poland

    L. Biegaŀa & J. Ulner

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  1. L. Biegaŀa
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  2. J. Ulner
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Biegaŀa, L., Ulner, J. Theory of the magnon-phonon interaction in magnetic field induced ferromagnet. Z. Physik B - Condensed Matter 50, 45–49 (1983). https://doi.org/10.1007/BF01307225

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  • DOI: https://doi.org/10.1007/BF01307225

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