The magnon spectra of g-type altermagnet bulk CrSb
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 q point along the A - M direction, lifetime differences of chiral altermagnons reach approximately 20 fs.
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