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A new class of nodal stationary states in 2D Heisenberg ferromagnet

I. G. Bostrem·A. S. Ovchinnikov
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Abstract

A new class of nodal topological excitations in a two-dimensional Heisenberg model is studied. The solutions correspond to a nodal singular point of the gradient field of the azimuthal angle. An analytical solution found for the isotropic case. An effect of in-plane exchange anisotropy is studied numerically. It results in solutions which are analogues of the conventional out-of-plane solitons in the two-dimensional magnets.

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I. G. Bostrem, A. S. Ovchinnikov. 2003-03-19. A new class of nodal stationary states in 2D Heisenberg ferromagnet. https://arxiv.org/abs/cond-mat/0303388

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