Аннотации:
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. © 2014 Springer Science+Business Media New York.