Dynamical Toroidal Hopfions in a Ferromagnet with Easy-Axis Anisotropy
arXiv:0911.0451 · doi:10.1134/S0021364009190102
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.
6 pages, 4 figures