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DOE OSTI · 2555908

Altermagnetism classification

Cheong, Sang-Wook [Rutgers University, Piscataway, NJ (United States)] (ORCID:0000000199056175)·Huang, Fei-Ting [Rutgers University, Piscataway, NJ (United States)] (ORCID:0000000198102811)
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Abstract

Altermagnets are magnetic states with fully compensated spins and broken PT (PT: parity times time reversal) symmetry (i.e., spin-split bands). We classify three kinds of altermagnets in terms of broken P and T. Furthermore, strong altermagnets have spin-split bands without spin-orbit coupling (SOC), and weak altermagnets has spin-split bands only with non-zero SOC. These strong vs. weak altermagnets can be identified from the total number of symmetric spin rotation operations.

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AltermagnetsCondensed-matter physicsMagnetic properties and materials

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Cheong, Sang-Wook [Rutgers University, Piscataway, NJ (United States)] (ORCID:0000000199056175), Huang, Fei-Ting [Rutgers University, Piscataway, NJ (United States)] (ORCID:0000000198102811). 2025-04-12. Altermagnetism classification. https://doi.org/10.1038/s41535-025-00756-5

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