Magnon BEC in Antiferromagnets with Suhl–Nakamura Interaction

From atomic physics one knows the phenomenon of Bose-Einstein con- densation (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...