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Width of the ferromagnetic resonance line in an anisotropic magnet in misoriented resonance and scanning magnetic fields

  • Magnetism and Ferroelectricity
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Abstract

The dependence of the width ΔH β of the ferromagnetic resonance (FMR) line in anisotropic magnets on the angle of misorientation β between the static (resonance) and scanning magnetic fields was investigated both experimentally and theoretically. The change in the linewidth is due to the dependence of the equilibrium orientation of the magnetization vector on the direction of the magnetic field upon the passage through the resonance. Using iron garnet films as an example, it was shown that under such a misorientation (a nonzero angle β) the linewidth is smallest. It was also shown that a two-dimensional representation of FMR spectra, in contrast to one-dimensional angular dependences of the resonance parameters, contains full information on the spectral characteristics of the film, including noncollinear field configurations.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russia

    Yu. N. Shvachko, D. V. Starichenko, G. A. Shmatov & Yu. V. Gobov

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  1. Yu. N. Shvachko
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  2. D. V. Starichenko
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  3. G. A. Shmatov
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  4. Yu. V. Gobov
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__________

Translated from Fizika Tverdogo Tela, Vol. 44, No. 11, 2002, pp. 2029–2034.

Original Russian Text Copyright © 2002 by Shvachko, Starichenko, Shmatov, Gobov.

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Shvachko, Y.N., Starichenko, D.V., Shmatov, G.A. et al. Width of the ferromagnetic resonance line in an anisotropic magnet in misoriented resonance and scanning magnetic fields. Phys. Solid State 44, 2124–2129 (2002). https://doi.org/10.1134/1.1521469

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  • DOI: https://doi.org/10.1134/1.1521469

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