Local setting of spin textures in a granular antiferromagnet

Miina Leiviskä, Sarah Jenkins, Richard F.L. Evans, Daria Gusakova, Vincent Baltz

Research output: Contribution to journalArticlepeer-review


Controlling the magnetic order of antiferromagnets is challenging due to their vanishing net magnetization. For this reason, the study of local spin textures in antiferromagnets is restricted by the difficulty in nucleating such states. Here, using atomistic simulations we demonstrate a method for nucleating localized spin textures in the grains of the thin-film antiferromagnet γ-IrMn3. Utilizing the exchange bias coupling between a ferromagnet and an antiferromagnet, we set the spin texture in the latter from a predefined spin texture in the former by means of a thermal cycling procedure. The local textures set in the antiferromagnetic grains are shown to be stable against field perturbations. We also discuss how various material parameters affect the efficiency of the setting and the characteristics of these set textures. The setting of antiferromagnetic spin textures provides a potential route to antiferromagnetic spintronic devices with noncollinear spin states such as skyrmions, bubbles, and domain walls.

Original languageEnglish
Article number184424
Number of pages8
JournalPhysical Review B
Issue number18
Publication statusPublished - 22 Nov 2023

Bibliographical note

Funding Information:
This study was partially supported by the France-U.K. Alliance Hubert Curien program (PHC) (Grant No. 46298XC) and the U.K. EPSRC program (Grant No. EP/V007211/1). This work used the ARCHER2 UK National Supercomputing Service . Derived data supporting the findings of this study are available from the corresponding authors on request.

Publisher Copyright:
© 2023 American Physical Society. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

Cite this