Excitation of two spatially separated Bose-Einstein condensates of magnons
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Institute for Applied Physics, University of Muenster, 48149 Muenster (Germany)
- Institute of Material Physics, University of Muenster, 48149 Muenster (Germany)
- Department of Radiophysics, National Taras Schevchenko University of Kiev, Kiev 01033 (Ukraine)
We have studied experimentally the spatial properties and the dynamics of magnon Bose-Einstein condensates created in ferromagnetic films by a parametric pumping with different spatial configurations. Using the specific character of dynamic fields produced by pumping resonators of different shapes, we were able to realize the regime, in which two spatially separated condensates of magnons are formed. Our experiments show that while the separation between the condensates is determined by the size of the resonator, their spatial width can be changed by varying the power of the pumping signal.
- OSTI ID:
- 21287055
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 6 Vol. 80; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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