Magnon Laser | Zendy

P. Nowik-Boltyk | Zendy; I. V. Borisenko | Zendy; V. E. Demidov | Zendy; S. O. Demokritov | Zendy

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Magnon Laser

Author(s) -

P. Nowik-Boltyk,

I. V. Borisenko,

V. E. Demidov,

S. O. Demokritov

Publication year - 2019

Publication title -

ukrainian journal of physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.213

H-Index - 17

eISSN - 2071-0194

pISSN - 2071-0186

DOI - 10.15407/ujpe64.10.938

Subject(s) - magnon , physics , bose–einstein condensate , laser , condensed matter physics , superfluidity , magnetic field , field (mathematics) , pulse (music) , quantum mechanics , ferromagnetism , mathematics , voltage , pure mathematics

We experimentally demonstrate a magnon laser based on the coherent Bose–Einstein condensate of magnons brought into motion by using a time-dependent spatially inhomogeneous magnetic field. We show that the application of a short field pulse results in the formation of a condensate cloud moving with the constant velocity of 930 m/s for the used parameters of the experiment. The number of magnons building the cloud is not changed during the propagation, which is reminiscent of the magnon superfluidity.

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