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Investigation of the effect of uniaxial pressure on antiferromagnetic resonance in KFe11O17 Crystals

  • Magnetism and Ferroelectricity
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Abstract

The deformation dependence of the resonance field in KFe11O17 single crystals was investigated by the AFMR method. The measurements were performed at T=77 K and ν=47.52 GHz for two orientations of the external pressure. The experimental data are discussed in terms of a model of a very simple easy-plane antiferromagnet taking account of the elastic and magnetoelastic contributions to the thermodynamic potential. The magnetostriction, magnetoelastic, and elastic contants are calculated and the results are λ=1.94×10−5, B 1=2.75×108 erg/cm3, and C 11−C 12=1.42×1013 erg/cm3, respectively. The alues of these constants imply that the origin of the initial gap in the AFMR spectrum is not of magnetoelastic origin.

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Authors and Affiliations

  1. L. V. Kirenskii Institute of Physics, Siberian Branch of the Russia Academy of Sciences, 660036, Krasnoyarsk, Russia

    V. N. Vasil’ev & E. N. Matveiko

Authors
  1. V. N. Vasil’ev
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  2. E. N. Matveiko
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Fiz. Tverd. Tela (St. Petersburg) 40, 513–515 (March 1998)

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Vasil’ev, V.N., Matveiko, E.N. Investigation of the effect of uniaxial pressure on antiferromagnetic resonance in KFe11O17 Crystals. Phys. Solid State 40, 471–473 (1998). https://doi.org/10.1134/1.1130311

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  • DOI: https://doi.org/10.1134/1.1130311

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