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Effect of Losses on the Group Velocity of Surface Spin Waves

  • Proceedings of the XXV International Conference “Electromagnetic Field and Materials (Fundamental Physical Research)”
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

It is found that considering the dissipation of surface spin waves propagating in arbitrary directions in a magnetized ferromagnetic film results in a substantial change in the dispersion surface: it is transformed from an infinite surface into a closed and bounded one consisting of an upper part with strong attenuation and a lower part with weak attenuation that join along an inclined ellipsoidal curve. The change in the dispersion surface is shown to have a considerable effect on the directions of the group velocity of the waves.

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Correspondence to A. Yu. Annenkov.

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Original Russian Text © A.Yu. Annenkov, S.V. Gerus, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2018, Vol. 82, No. 8, pp. 1041–1044.

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Annenkov, A.Y., Gerus, S.V. Effect of Losses on the Group Velocity of Surface Spin Waves. Bull. Russ. Acad. Sci. Phys. 82, 939–942 (2018). https://doi.org/10.3103/S1062873818080075

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  • DOI: https://doi.org/10.3103/S1062873818080075

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