Spin flexoelectricity in multiferroics
Alexander P. Pyatakov, Anatoly K. Zvezdin
TL;DR
This paper explores the flexomagnetoelectric effect in multiferroics, highlighting how spin modulation induces electric polarization and affects magnetic and dynamic properties, advancing understanding of inhomogeneous magnetoelectric interactions.
Contribution
It introduces the concept of spin flexoelectricity in multiferroics, linking inhomogeneous magnetoelectric interactions to various magnetic and electric phenomena.
Findings
Spin modulation induces electric polarization in magnetic media.
Inhomogeneous magnetoelectric interaction influences magnon spectra.
Ferroelectric domain structures affect antiferromagnetic vector distribution.
Abstract
Various phenomena related to inhomogeneous magnetoelectric interaction are considered. The interrelation between spatial modulation of order parameter and electric polarization, known as flexoelectric effect in liquid crystals, in the case of magnetic media appears in a form of electric polarization induced by spin modulation and vice versa. This flexomagnetoelectric interaction is also related to the influence of ferroelectric domain structure on antiferromagnetic vector distribution, and to the magnetoelectric properties of micromagnetic structures. The influence of inhomogeneous magnetoelectric interaction on dynamic properties of multiferroics, particularly magnon spectra is also considered.
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Taxonomy
TopicsMultiferroics and related materials · Nonlocal and gradient elasticity in micro/nano structures · Railway Engineering and Dynamics