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Dynamic topological solitons in a two-dimensional ferromagnet

  • Nonlinear Physics
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Abstract

It is shown that stable, skyrmion-type, dynamic solitons can be constructed for a wide class of two-dimensional models of anisotropic ferromagnets. These solitons are stabilized as a result of the conservation of various integrals of motion: the z projection of the total spin S z or the orbital angular momentum L z of the magnetization field. A class of two-parameter solitons with quite complicated (almost periodic) magnetization-field dynamics exists for a purely uniaxial model (in the sense of both spin and spatial rotations) with maximum symmetry. Stable solitons with periodic magnetization dynamics exist for ferromagnets with lower symmetry (only S z or L z or the total angular momentum J z =L z +S z is conserved).

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Authors and Affiliations

  1. Institute of Magnetism, Ukrainian National Academy of Sciences, 252680, Kiev, Ukraine

    A. A. Zhmudskii & B. A. Ivanov

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  1. A. A. Zhmudskii
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  2. B. A. Ivanov
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Zh. Éksp. Teor. Fiz. 115, 1511–1530 (April 1999)

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Zhmudskii, A.A., Ivanov, B.A. Dynamic topological solitons in a two-dimensional ferromagnet. J. Exp. Theor. Phys. 88, 833–843 (1999). https://doi.org/10.1134/1.558863

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  • DOI: https://doi.org/10.1134/1.558863

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