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Ferromagnetic resonance line dispersion in polycrystalline ferrites

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Abstract

Results of a theoretical and experimental investigation of the influence of pores and nonmagnetic inclusions on the ferromagnetic resonance line dispersion in polycrystalline ferrites are elucidated in this paper. The absorption line dispersion is computed with the deflection of the local magnetization vector from the magnetizing field direction taken into account, where the dispersion is described by linear terms in the generation and annihilation operators in the Hamiltonian of the interacting spin wave system. The theory and experiment are compared in a broad range of variation of the porosity in different ferrites. The field of anisotropy of the ferrites investigated is calculated from the second moment of the absorption line.

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Authors and Affiliations

  1. V. D. Kuznetsov Siberian Physicotechnical Institute at Tomsk State University, USSR

    V. A. Zhuravlev & V. S. Korogodov

Authors
  1. V. A. Zhuravlev
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  2. V. S. Korogodov
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 37–41, November. 1981.

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Zhuravlev, V.A., Korogodov, V.S. Ferromagnetic resonance line dispersion in polycrystalline ferrites. Soviet Physics Journal 24, 1010–1014 (1981). https://doi.org/10.1007/BF00892503

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  • DOI: https://doi.org/10.1007/BF00892503

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