The influence of the magnetic field on the nucleation and properties of 0-degree domain boundaries in uniaxial films with inhomogeneous magnetoelectric interaction

TL;DR

This study explores how magnetic fields influence 0-degree domain boundaries in uniaxial films with inhomogeneous magnetoelectric interactions, revealing ways to control the effect's strength and the critical electric field needed for domain formation.

Contribution

It demonstrates the magnetic field's ability to modulate the flexomagnetoelectric effect and critical electric fields in uniaxial magnetic films with 0-degree domain boundaries, highlighting new control mechanisms.

Findings

Magnetic field orientation can enhance or weaken the flexomagnetoelectric effect.

Magnetic field magnitude can reduce the critical electric field to zero.

Flexomagnetoelectric effect increases with magnetic field in certain boundary conditions.

Abstract

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