Electrically controlled pinning of Dzyaloshinskii-Moriya domain walls

TL;DR

This paper introduces an electrically controlled method to pin and manipulate Dzyaloshinskii-Moriya domain walls in ferromagnetic nanowires, enabling precise control and potential low-power applications.

Contribution

It presents a novel approach to control domain wall pinning via electric fields by tuning Dzyaloshinskii-Moriya interaction strength.

Findings

Electric field modulates Dzyaloshinskii-Moriya interaction.

Enhanced control over domain wall pinning sites.

Potential for ultra-low power spintronic devices.

Abstract

We propose a method to all-electrically control a domain-wall position in a ferromagnetic nanowire with Dzyaloshinskii-Moriya interaction. The strength of this interaction can be controlled by an external electric field, which in turn allows a fine tuning of the pinning potential of a spin-spiral domain wall. It allows to create more mobile pinning sites and can also be advantageous for ultra-low power electronics.