Dynamical toroidal Hopfions in a ferromagnet with easy-axis anisotropy

@article{Borisov2009DynamicalTH,
  title={Dynamical toroidal Hopfions in a ferromagnet with easy-axis anisotropy},
  author={Alexander B. Borisov and Filipp N. Rybakov},
  journal={JETP Letters},
  year={2009},
  volume={90},
  pages={544-547}
}
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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