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Magnons and Edge Modes in Chains of Nonspherical Magnetic Particles

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Moscow University Physics Bulletin Aims and scope

Abstract

Spin waves in chains of magnetic particles shaped as elongated ellipsoids magnetized along the chain axis have been studied. The dispersion relation of such waves were found and the edges of the magnonic transmittance band have been analytically derived. It is shown that edge modes appear at the ends of a chain, and their existence is caused by static stray fields attenuating at the ends of the chains.

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Funding

This study was supported by the Russian Foundation for basic research (grant no. 19-32-90046) and the BASIS Foundation for the Development of Theoretical Physics and Mathematics.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, 119991, Moscow, Russia

    A. M. Pikalov

  2. Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 125009, Moscow, Russia

    A. M. Pikalov

  3. Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, 125412, Moscow, Russia

    A. V. Dorofeenko

Authors
  1. A. M. Pikalov
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  2. A. V. Dorofeenko
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Corresponding author

Correspondence to A. V. Dorofeenko.

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Translated by E. Glushachenkova

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Pikalov, A.M., Dorofeenko, A.V. Magnons and Edge Modes in Chains of Nonspherical Magnetic Particles. Moscow Univ. Phys. 76, 42–46 (2021). https://doi.org/10.3103/S0027134921010094

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  • DOI: https://doi.org/10.3103/S0027134921010094

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