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Frequency dependences of FMR in films with angular dispersion of the magnetic anisotropy

  • Physics of Magnetic Phenomena
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Abstract

On the basis of a statistical model of noninteracting blocks, it is clarified that films with high angular dispersion (α0 ∼ 15–35°) are characterized by an asymmetric resonance curve whose amplitude χ″r and width ΔH depend, in contrast to uniaxial films, on the angle of film rotation in its plane in large field domains and whose frequency dependences are related substantially to the angular dispersion; the presence of domains in the angular dependence of the resonance field where Hr is constant; an effective magnetic anisotropy field dependent on the frequency and with the limit valueH eff K =H K exp(−2a 20 . The theoretical deductions are conformed by experiment.

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Author information

Authors and Affiliations

  1. N. E. Bauman Moscow Higher Technical School, USSR

    G. G. Kirsanov, D. I. Sementsov & V. V. Sidorenkov

Authors
  1. G. G. Kirsanov
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  2. D. I. Sementsov
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  3. V. V. Sidorenkov
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Additional information

Translated from Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 75–81, July, 1987.

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Kirsanov, G.G., Sementsov, D.I. & Sidorenkov, V.V. Frequency dependences of FMR in films with angular dispersion of the magnetic anisotropy. Soviet Physics Journal 30, 628–632 (1987). https://doi.org/10.1007/BF00895234

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  • DOI: https://doi.org/10.1007/BF00895234

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