Literature DB >> 17678324

Thermalization of a parametrically driven magnon gas leading to Bose-Einstein condensation.

V E Demidov1, O Dzyapko, S O Demokritov, G A Melkov, A N Slavin.   

Abstract

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. The threshold pumping power necessary for the thermalization is determined. For pumping powers above this threshold the thermalization time has been found to decrease rapidly with power reaching the value down to 50 ns, which is much smaller than the magnon lifetime.

Year:  2007        PMID： 17678324     DOI： 10.1103/PhysRevLett.99.037205

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  4 in total

1.  Spatially non-uniform ground state and quantized vortices in a two-component Bose-Einstein condensate of magnons.

Authors:  P Nowik-Boltyk; O Dzyapko; V E Demidov; N G Berloff; S O Demokritov
Journal:  Sci Rep       Date:  2012-06-29       Impact factor: 4.379

2.  Chemical potential of quasi-equilibrium magnon gas driven by pure spin current.

Authors:  V E Demidov; S Urazhdin; B Divinskiy; V D Bessonov; A B Rinkevich; V V Ustinov; S O Demokritov
Journal:  Nat Commun       Date:  2017-11-17       Impact factor: 14.919

3.  Excitation of coherent second sound waves in a dense magnon gas.

Authors:  V Tiberkevich; I V Borisenko; P Nowik-Boltyk; V E Demidov; A B Rinkevich; S O Demokritov; A N Slavin
Journal:  Sci Rep       Date:  2019-06-21       Impact factor: 4.379

4.  Phase diagram for magnon condensate in Yttrium Iron Garnet film.

Authors:  Fuxiang Li; Wayne M Saslow; Valery L Pokrovsky
Journal:  Sci Rep       Date:  2013       Impact factor: 4.379
  4 in total

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