Patrik Nowik-Boltyk

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Using a novel heterodyne magneto-optical Kerr-effect technique, we have studied the spectral characteristics of a room-temperature magnon Bose-Einstein condensate (BEC) in yttrium-iron-garnet (YIG) films. Thanks to the ultimate frequency resolution of the technique of better than 100 Hz, we were able to directly determine the spectral linewidth of the(More)
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