Systematic display of the spin splitting in band structures of representative altermagnetic crystals
Year: 2026
Type: preprint
Abstract: In this work we demonstrate a novel approach to exhibit the unique spin splitting that is typical of collinear altermagnets. This approach is to plot band structures on Brillouin zone paths that sample general k-points to show a representative picture that corresponds to Brillouin zone averages. This is in contrast to conventional band structure plotting which plots band structures on the highest-symmetry points and lines, and thus in many cases can fail to show any altermagnetic spin splitting at all. Our investigation compares the new approach with the band structures of collinear altermagnets using conventional band structure plotting. We report the band structure and symmetry analysis for MnTe, CrSb, SmFeO3, ScCrO3, LaMnO3, TlCrO3, HoFeO3, InCrO3 and DyFeO3. This result clearly demonstrates the advantage of this novel method for displaying the spin splitting of collinear altermagnets.
Source: arXiv (Cornell University)
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, W. M. Keck Foundation, Gordon and Betty Moore Foundation, National Research Foundation, National Research Foundation of Korea, Ministry of Science and ICT, South Korea, Agencia Nacional de Investigación y Desarrollo, Office of Naval Research, Division of Materials Research
OpenAlex ID: W7207719880