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Dynamical toroidal Hopfions in a ferromagnet with easy-axis anisotropy

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Abstract

Three-dimensional toroidal precession solitons with a nonzero Hopf index, which uniformly move along the anisotropy axis in a uniaxial ferromagnet, have been found. The structure and existence region of the solitons have been numerically determined by solving the Landau-Lifshitz equation.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoĭ 18, Yekaterinburg, 620041, Russia

    A. B. Borisov & F. N. Rybakov

Authors
  1. A. B. Borisov
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  2. F. N. Rybakov
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Correspondence to F. N. Rybakov.

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Original Russian Text © A.B. Borisov, F.N. Rybakov, 2009, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2009, Vol. 90, No. 7, pp. 593–596.

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Borisov, A.B., Rybakov, F.N. Dynamical toroidal Hopfions in a ferromagnet with easy-axis anisotropy. Jetp Lett. 90, 544–547 (2009). https://doi.org/10.1134/S0021364009190102

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  • DOI: https://doi.org/10.1134/S0021364009190102

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