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Related Experiment Video

Updated: Oct 18, 2025

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Switching between Magnetic Bloch and Néel Domain Walls with Anisotropy Modulations.

Kévin J A Franke¹, Colin Ophus², Andreas K Schmid²

¹School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom.

Physical Review Letters

|October 1, 2021

Summary

Researchers found that in-plane magnetic anisotropy can create Néel domain walls without Dzyaloshinskii-Moriya interaction. Modulating magnetic anisotropy allows switching between Bloch and Néel walls, enabling electric field control of domain wall types.

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Area of Science:

Condensed Matter Physics
Materials Science

Background:

Perpendicularly magnetized thin films often exhibit Néel domain walls stabilized by the Dzyaloshinskii-Moriya interaction.
Understanding domain wall behavior is crucial for spintronic devices.

Purpose of the Study:

To investigate the role of uniaxial in-plane magnetic anisotropy in forming Néel domain walls.
To explore the possibility of switching between Bloch and Néel domain wall types using magnetic anisotropy modulation.

Main Methods:

Micromagnetic simulations were employed to model magnetic domain wall behavior.
Analytical modeling was used to support simulation findings.

Main Results:

Uniaxial in-plane magnetic anisotropy can stabilize Néel domain walls even without the Dzyaloshinskii-Moriya interaction.
Domain wall type (Bloch vs. Néel) can be abruptly switched by small changes in in-plane or perpendicular magnetic anisotropy.

Conclusions:

Magnetic anisotropy offers a pathway to control domain wall types in thin films.
This control mechanism could enable electric field manipulation of domain walls in future spintronic applications.