# Tuning magnetic chirality by dipolar interactions

## TL;DR

This paper demonstrates that dipolar interactions can stabilize chiral magnetic domain walls and skyrmions, and that their competition with Dzyaloshinskii-Moriya interactions influences domain-wall chirality, opening new avenues for chiral magnetism control.

## Contribution

It provides direct experimental evidence that dipolar interactions stabilize chiral spin textures and explores their interplay with Dzyaloshinskii-Moriya interactions.

## Key findings

- Dipolar interactions can stabilize chiral domain walls.
- Competition between dipolar and Dzyaloshinskii-Moriya interactions can reverse chirality.
- The interplay can be tailored via RKKY interactions.

## Abstract

Chiral magnetism has gained enormous interest in recent years because of the anticipated wealth of applications in nanoelectronics. The demonstrated stabilization of chiral magnetic domain walls and skyrmions has been attributed to the actively investigated Dzyaloshinskii-Moriya interaction. Recently, however, predictions were made that suggest dipolar interactions can also stabilize chiral domain walls and skyrmions, but direct experimental evidence has been lacking. Here we show that dipolar interactions can indeed stabilize chiral domain walls by directly imaging the magnetic domain walls using scanning electron microscopy with polarization analysis. We further show that the competition between the Dzyaloshinskii-Moriya and dipolar interactions can reverse the domain-wall chirality. Finally, we suggest that this competition can be tailored by a Ruderman-Kittel-Kasuya-Yosida interaction. Our work therefore reveals that dipolar interactions play a key role in the stabilization of chiral spin textures. This insight will open up new routes towards balancing interactions for the stabilization of chiral magnetism.