G. A. Melkov

TL;DR: By using a technique of microwave pumping it is possible to excite additional magnons and to create a gas of quasi-equilibrium magnons with a non-zero chemical potential, and a Bose condensate of magnons is formed.

TL;DR: Using the sensitivity of the Brillouin light scattering technique to the coherence degree of the scattering magnons, it is demonstrated the spontaneous emergence of coherence of the magnons at the lowest level, if their density exceeds a critical value.

TL;DR: Measurements in a magnetic insulator subject to a thermal gradient indicate that if the transverse spin Seebeck effect is caused by a temperature difference between the magnon and phonon baths, it must be the case that theMagnon temperature is spectrally nonuniform.

TL;DR: The thermalization of parametrically pumped magnons caused by nonlinear multimagnon scattering processes and leading to the magnon Bose-Einstein condensation is investigated experimentally with high temporal resolution and the threshold pumping power necessary for the thermalization is determined.

TL;DR: Using a novel technique providing simultaneous resolution with respect to the wave vector and frequency of magnons, the formation of a Bose-Einstein condensate is observed documented by the narrowing of the magnon distribution in phase space.