Influence of the magnetic field on the nucleation and properties of 0-degree domain walls in uniaxial films with inhomogeneous magnetoelectric interaction

Abstract

This study investigates the behavior of 0°-domain walls arising in uniaxial magnetic films with a flexomagnetoelectric (FME) effect in a magnetic field. It is shown that at certain magnetic field orientations, it is possible to significantly enhance (or weaken) the degree of manifestation of the FME effect in the studied films. In addition, by varying the magnitude and direction of the magnetic field, it is possible to significantly lower (up to zero) the value of the critical electric field at the origin of this inhomogeneity. It is also established that the 0°-domain wall of the non-Neel type, in which induced bound charges do not create a resultant field (field shielding); when a magnetic field is directed perpendicular to the plane of rotation of magnetic moments, a FME effect occurs, which increases with increasing magnitude of the magnetic field.