Writing a skyrmion on multiferroic materials

TL;DR

This paper proposes a theoretical method to electrically create magnetic skyrmions in multiferroic materials using local electric fields, enabling potential low-energy skyrmion-based memory devices.

Contribution

It introduces a novel electric-field-based technique for skyrmion creation in multiferroics, avoiding Joule heating and advancing skyrmion memory technology.

Findings

Electric fields can induce skyrmions in multiferroic thin films.

The method leverages coupling between spins and polarizations.

Potential for low-power skyrmion memory applications.

Abstract

This paper reports on a theoretical proposal for electrical creation of magnetic skyrmions on a thin-film specimen of a multiferroic chiral magnet by local application of an electric field, instead of an electric current, via an electrode tip. This method can be traced back to the mutual coupling between skyrmion spins and the electric polarizations in multiferroics, and represents a unique technique for use in potential skyrmion-based memory devices without Joule-heating losses.