Diluted planar ferromagnets: nonlinear excitations on a non-simply connected manifold
Strongly Correlated Electrons
2009-09-24 v1
Abstract
We study the behavior of magnetic vortices on a two-dimensional support manifold being not simply connected. It is done by considering the continuum approach of the XY-model on a plane with two disks removed from it. We argue that an effective attractive interaction between the two disks may exist due to the presence of a vortex. The results can be applied to diluted planar ferromagnets with easy-plane anisotropy, where the disks can be seen as nonmagnetic impurities. Simulations are also used to test the predictions of the continuum limit.
Cite
@article{arxiv.cond-mat/0406573,
title = {Diluted planar ferromagnets: nonlinear excitations on a non-simply connected manifold},
author = {Fagner M. Paula and Afranio R. Pereira and Lucas A. S. Mól},
journal= {arXiv preprint arXiv:cond-mat/0406573},
year = {2009}
}
Comments
5 pages, 6 figures