Abstract

Altermagnetism is introduced as a category of magnetic states with ‘collinear’ antiferromagnetic spins and alternating variations of local structures around spins in such a way that the symmetry allows typical ferromagnetic behaviors. Altermagnets exhibiting ferromagnetic behaviors without any external perturbations (type-I) turn out to belong to the ferromagnetic point group. Other altermagnets (type-II and type-III) can have ferromagnetic behaviors only with external perturbations such as electric current or stress, which conserve parity-time-reversal (PT) symmetry. All types of altermagnets themselves have broken PT symmetry. The concept of altermagnetism can be extended to accommodate non-collinear spins and multiple local-structure variations.

Details

Title
Altermagnetism with non-collinear spins
Author
Cheong, Sang-Wook 1   VIAFID ORCID Logo  ; Huang, Fei-Ting 1   VIAFID ORCID Logo 

1  Rutgers University, Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Piscataway, USA (GRID:grid.430387.b) (ISNI:0000 0004 1936 8796) 
Pages
13
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
23974648
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41535-024-00626-6
ProQuest document ID
2917422345
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.