%0 Journal Article
%T Theory of vortex states in magnetic nanodisks with induced Dzyaloshinskii-Moriya interactions
%A A. B. Butenko
%A A. A. Leonov
%A A. N. Bogdanov
%A U. K. R£¿£¿ ler
%J Physics
%D 2009
%I arXiv
%R 10.1103/PhysRevB.80.134410
%X Vortex states in magnetic nanodisks are essentially affected by surface/interface induced Dzyaloshinskii-Moriya interactions. Within a micromagnetic approach we calculate the equilibrium sizes and shape of the vortices as functions of magnetic field, the material and geometrical parameters of nanodisks. It was found that the Dzyaloshinskii-Moriya coupling can considerably increase sizes of vortices with "right" chirality and suppress vortices with opposite chirality. This allows to form a bistable system of homochiral vortices as a basic element for storage applications.
%U http://arxiv.org/abs/0906.5552v2