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Focusing and Caustics of Magnons in Ferromagnetic Semiconductors with FCC Structure

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Directions of the focusing of exchange spin waves inside crystals with an FCC lattice of the rock-salt type are determined. Using the example of ferromagnetic semiconductors EuO and EuS, it is shown that neither an external magnetic field nor dimensional effects are required for focusing in such systems. The directions in the crystal and the necessary conditions for the formation of magnon caustics are determined.

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Funding

This work was performed as part of State Task no. АААА-А19-119012990095-0 on the topic “Function”; and of project no. 32-1.1.3.5 of the Basic Research program of the Presidium of the Russian Academy of Sciences, under contract no. 14.Z50.31.0025 of the RF Ministry of Education and Science. It was supported by the Russian Foundation for Basic Research, project no. 18-32-00139-mol_a.

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620990, Yekaterinburg, Russia

    S. M. Bakharev, S. P. Savchenko & A. P. Tankeyev

  2. Ural Federal University, 620002, Yekaterinburg, Russia

    S. M. Bakharev & A. P. Tankeyev

Authors
  1. S. M. Bakharev
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  2. S. P. Savchenko
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  3. A. P. Tankeyev
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Corresponding author

Correspondence to S. M. Bakharev.

Additional information

Translated by E. Smirnova

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Bakharev, S.M., Savchenko, S.P. & Tankeyev, A.P. Focusing and Caustics of Magnons in Ferromagnetic Semiconductors with FCC Structure. Bull. Russ. Acad. Sci. Phys. 83, 822–824 (2019). https://doi.org/10.3103/S1062873819070062

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  • DOI: https://doi.org/10.3103/S1062873819070062

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