Electric and spin current vortices in altermagnets
Altermagnets are collinear magnets exhibiting momentum-dependent spin splitting and vanishing net magnetization. Using semiclassical Boltzmann and lattice Keldysh approaches, the authors demonstrate here that altermagnets support swirling electric and spin currents. The patterns of these currents are controlled by the relative orientation of altermagnetic nodal planes and sample boundaries. Unlike previous proposals considering the hydrodynamic transport regime, swirling currents appear even in the Ohmic regime and rely exclusively on altermagnetic spin splitting, with no swirls found in ferromagnets.
Authors
- P. O. Sukhachov (ORCID: https://orcid.org/0000-0003-2280-8249)
- Erik Wegner Hodt (ORCID: https://orcid.org/0009-0001-5184-6634)
- Karl Bergson Hallberg (ORCID: https://orcid.org/0009-0001-6726-6044)
- Jacob Linder (ORCID: https://orcid.org/0000-0003-0384-763X)
- A. A. Herasymchuk (ORCID: https://orcid.org/0000-0002-5453-2681)
- É. V. Gorbar (ORCID: https://orcid.org/0000-0002-2684-1276)
Institutions
- Taras Shevchenko National University of Kyiv (UA)
- Norwegian University of Science and Technology (NO)
- Bogolyubov Institute for Theoretical Physics (UA)
- University of Missouri (US)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-11-10
- DOI
- https://doi.org/10.1103/3sw6-y8vf
- Citations
- 1
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 1.25