Magnon BEC in Antiferromagnets with Suhl-Nakamura Interaction
Résumé
From atomic physics one knows the phenomenon of Bose-Einstein condensation (BEC), where a macroscopic ensemble of particles occupy coherently a single state. Similar phenomena were observed for different types of quasiparticles in condensed matter. Here we present the results of investigations on the BEC of elementary magnetic excitations--magnons--in antiferromagnets with a dynamical frequency shift.