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Influence of Shape Effects on the Spectrum of Spin Waves in Finite Array of Ferromagnetic Pillars

  • S. A. OsokinEmail author
  • A. R. Safin
  • S. A. Nikitov
Article
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Abstract

The frequency characteristics of spin waves excited in the chain of cylindrical ferromagnetic pillars are investigated. The presence of a boundary in the chain and the finite height of the pillars lead to the existence of inhomogeneity of magnetization and effective magnetic fields. Using methods of finite-difference discretization simulation we demonstrated the existence of additional resonant frequencies for the edge modes of spin waves due to the demagnetization of the pillars and dipole-dipole interaction between the pillars of the chain.

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Notes

S. A. Nikitov acknowledges support from the Government of the Russian Federation (#074-02-2018-286 for the Terahertz Spintronics laboratory of the Moscow Institute of Physics and Technology (NRU)). A.R. Safin acknowledges support from Russian Foundation for Basic Research (Grant #19-29-03015).

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Copyright information

© Pleiades Publishing, Inc. 2019

Authors and Affiliations

  • S. A. Osokin
    • 1
    • 2
    Email author
  • A. R. Safin
    • 2
    • 3
  • S. A. Nikitov
    • 1
    • 2
    • 4
  1. 1.Moscow Institute of Physics and TechnologyState UniversityDolgoprudnyRussia
  2. 2.Kotel’nikov Institute of Radioengineering and Electronics of Russian Academy of SciencesMoscowRussia
  3. 3.National Research University “MPEI”MoscowRussia
  4. 4.Saratov State UniversitySaratovRussia

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