Elasto-Hall conductivity and the anomalous Hall effect in altermagnets
Altermagnets, in which time-reversal symmetry is broken but net magnetization is zero, have attracted much attention recently as a novel class of magnetic materials. Because the anomalous Hall effect (AHE) is only allowed for certain moment directions, it is not a generic property of altermagnets. Instead, the authors show here that a transport coefficient they call elasto-Hall conductivity, corresponding to a strain-induced AHE, can be used to directly probe the altermagnetic order parameter. Moreover, the elasto-Hall conductivity arises from the strain-induced deformation of the Berry curvature quadrupole that characterizes altermagnets.
Authors
- Jörg Schmalian (ORCID: https://orcid.org/0000-0003-4142-2448)
- Masao Ogata (ORCID: https://orcid.org/0000-0003-4288-4337)
- Keigo Takahashi (ORCID: https://orcid.org/0000-0002-7562-4251)
- Rafael M. Fernandes (ORCID: https://orcid.org/0000-0002-3584-5180)
- Charles R. W. Steward (ORCID: https://orcid.org/0009-0005-3897-6062)
Institutions
- Karlsruhe Institute of Technology (DE)
- University of Illinois Urbana-Champaign (US)
- The University of Tokyo (JP)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-05-05
- DOI
- https://doi.org/10.1103/physrevb.111.184408
- Citations
- 16
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 19.95
Funders
- Deutsche Forschungsgemeinschaft
- University of Tokyo
- Japan Society for the Promotion of Science
- Air Force Office of Scientific Research