Vortices in thin ferromagnetic films and the skyrmion number
arXiv:cond-mat/0611392 · doi:10.1103/PhysRevB.75.012408
Abstract
We point out that a peculiar annihilation of a vortex-antovortex pair observed numerically by Hertel and Schneider [Phys. Rev. Lett. 97, 177202 (2006)] represents the formation and subsequent decay of a skyrmion.
2 pages, update to published version
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