Why are there so few non-altermagnetic antiferromagnets?

arXiv (Cornell University) 2026 Preprint Open access

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Authors: Nicola A. Spaldin, Sang-Wook Cheong, Sinead Griffin
DOI: 10.48550/arxiv.2602.17181
Cited by: 1

Abstract

We review the conditions that cause or prohibit non-relativistic spin splitting of the energy bands in antiferromagnets. We propose that the existence of spin splitting in magnetically ordered systems is the default scenario and outline the criteria that must be met to avoid it. We discuss some of the properties of those special antiferromagnets that succeed in preserving their spin degeneracy.

Fields of Study & Subjects

Physics of Superconductivity and Magnetism Magnetic properties of thin films Advanced Condensed Matter Physics

Publication details

Journal / source
arXiv (Cornell University)
Publication date
19 February 2026
Document type
Preprint