Driving Skyrmions on a Composite Multiferroic Lattice

TL;DR

This paper demonstrates how electric fields can induce and manipulate magnetic skyrmions in a composite multiferroic lattice using coupled spin dynamics simulations, revealing skyrmion-like electric structures during switching.

Contribution

It introduces a coupled spin and pseudospin model to simulate electric-driven skyrmions in multiferroics, highlighting the electric-magnetic structure connection.

Findings

Electric fields can induce magnetic skyrmions in multiferroic lattices.

Skyrmion-like objects appear in the electric component during switching.

Strong magnetoelectric coupling enables electric control of magnetic skyrmions.

Abstract

Magnetic skyrmions and multiferroics are the most interesting objects in nanostructure science that have great potential in future spin-electronic technology. The study of the multiferroic skyrmions has attracted much interest in recent years. This paper reports on the magnetic skyrmions induced by an electric driving field on a composite multiferroic lattice. By using the spin dynamics method, we use a classical magnetic spin model and an electric pseudospin model, which are coupled by a strong magnetoelectric coupling in the dynamical simulations. Interestingly, we observe some skyrmion-like objects on the electric component during the switching process, which is due to the connection between the electric and the magnetic structures.