Spiral vortices in a 2D ferromagnet
arXiv:cond-mat/0509481 · doi:10.1103/PhysRevB.72.134423
Abstract
We present a study of a new class of exact solutions having a form of spiral vortices for an isotropic two-dimensional Heisenberg ferromagnet using a continuum theory and direct numerical simulations of the spin system on a square lattice. We find their features issued from the conservation laws and describe their interaction. Reasons behind the formation of the proper spin configurations on a square lattice are investigated.
accepted in Phys. Rev. B
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