Minimal models for altermagnetism
Altermagnets feature vanishing net magnetization, similar to antiferromagnets, but exhibit time-reversal symmetry breaking and spin-split band structures. This work constructs minimal models for altermagnetism based on symmetry arguments considering two magnetic atoms in the unit cell and demonstrates that these can capture key properties of the band structure and altermagnetic spin splitting for the material candidate RuO${}_{2}$. Notably, the models have altermagnetic ground states and give rise to a Berry curvature and a conductivity linear in the spin-orbit coupling.
Authors
- Andreas Kreisel (ORCID: https://orcid.org/0000-0003-3028-377X)
- Brian M. Andersen (ORCID: https://orcid.org/0000-0002-9786-7553)
- Mercè Roig (ORCID: https://orcid.org/0000-0002-5281-9750)
- D. F. Agterberg (ORCID: https://orcid.org/0000-0003-0178-1374)
- Yue Yu (ORCID: https://orcid.org/0000-0002-9446-9971)
Institutions
- University of Copenhagen (DK)
- University of Wisconsin–Milwaukee (US)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2024-10-08
- DOI
- https://doi.org/10.1103/physrevb.110.144412
- Citations
- 80
- Primary Topic
- Physics of Superconductivity and Magnetism
- Type
- article
- Field-Weighted Citation Impact
- 24.87
Funders
- National Science Foundation
- Novo Nordisk
- Novo Nordisk Fonden