The magnon spectra of g-type altermagnet bulk CrSb

2025/10/04 by Tas, Murat
#FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci)

paper · doi:10.48550/arxiv.2510.03759

Abstract

We present a calculation of the magnon spectra and chiral lifetimes of altermagnons in bulk CrSb using the many-body perturbation theory. The spin-split band structure is evident in the magnon spectra. Altermagnons attain an energy of 275 meV at the K point of the Brillouin zone. Due to large spin splitting at a specific \bf q point along the A - M direction, lifetime differences of chiral altermagnons reach approximately 20 fs.

Citations

• Electronic correlations arising from anti-Stoner spin excitations: an ab initio study of itinerant ferro- and antiferromagnet
• Giant spatial anisotropy of magnon lifetime in altermagnets
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