Effect of electric field on vortex-like structures in a planar magnet

Abstract The paper theoretically studies the influence of inhomogeneous magnetoelectric interaction on systems of vortex-like objects formed in a film of a planar ferromagnet. It is shown that each of these objects interacts with an electric field as a point charge of a certain magnitude (in particular, the object ‘feels’ the field only in its center). It is revealed that fields of sufficiently high strength can promote the spontaneous generation of a vortex-antivortex pair due to the amplification of fluctuations in the magnetization distribution in the film.