Functionalities of frozen domain walls in helical antiferromagnets
Principles behind antiferromagnetic spintronics often claim that an antiferromagnet (AF) cannot be manipulated by external magnetic fields and that domain walls (DWs) are highly mobile and do not suffer strong pinning while maintaining robustness during thermal fluctuations. Using dysprosium (Dy) as an example, we take the opposite view. The functionality of a helical AF in Dy uses two intrinsic properties of chiral DWs: their intrinsic magnetization and their freezing just below the N\'eel temperature. Experiments with Dy single crystal show that field cooling through the fluctuation regime converts a helical AF into a domain wall--dominated system with striking properties related with robustness of frozen chiral DWs. On the other hand, chiral DWs are easily controlled by external fields throughout the fluctuation regime.
Authors
- S. Kustov (ORCID: https://orcid.org/0000-0002-1730-6431)
- Ahmed Sedda (ORCID: https://orcid.org/0000-0001-9059-8533)
- Ekhard K. H. Salje (ORCID: https://orcid.org/0000-0002-8781-6154)
- M. C. Comas
- Xiebin Wang (ORCID: https://orcid.org/0000-0001-5132-6797)
- E. Lähderanta (ORCID: https://orcid.org/0000-0002-1596-2849)
- Daniel Salazar
- Jan Frenzel (ORCID: https://orcid.org/0000-0002-2778-5392)
- Miguel Lluís Corró
- G. Eggeler
Institutions
- Shandong University (CN)
- University of Cambridge (GB)
- Basque Center for Materials, Applications and Nanostructures (ES)
- Fundació Universitat-Empresa de les Illes Balears (ES)
- Universitat de les Illes Balears (ES)
- Lappeenranta-Lahti University of Technology (FI)
- Ruhr University Bochum (DE)
- Politecnico di Milano (IT)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-03-18
- DOI
- https://doi.org/10.1103/physrevb.111.094423
- Citations
- 1
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- European Regional Development Fund