Vortices in the presence of a nonmagnetic atom impurity in 2D XY ferromagnets

Abstract

Using a model of nonmagnetic impurity potential, we have examined the behavior of planar vortex solutions in the classical two-dimensional XY ferromagnets in the presence of a spin vacancy localized out of the vortex core. Our results show that a spinless atom impurity gives rise to an effective potential that repels the vortex structure.

6 pages, 2 figures, RevTex 4

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