Thermalization of a Parametrically Driven Magnon Gas Leading to Bose-Einstein Condensation
Journal Article
·
· Physical Review Letters
- Institute for Applied Physics and Center for Nonlinear Science, University of Muenster (Germany)
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.
- OSTI ID:
- 20957905
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 99; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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