Kinetics of Strongly Nonequilibrium Magnon Gas Leading to Bose-Einstein Condensation
Kinetic equations describing nonequilibrium magnon gas under the action of parametric pumping are considered with an account of kinetic instability processes. These processes strongly influence condition of magnon Bose-Einstein condensate formation. It is shown that the number of condensed magnons i...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sumy State University
2017-06-01
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| Series: | Журнал нано- та електронної фізики |
| Subjects: | |
| Online Access: | http://jnep.sumdu.edu.ua:8080/download/numbers/2017/3/articles/jnep_V9_03033.pdf |
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| Summary: | Kinetic equations describing nonequilibrium magnon gas under the action of parametric pumping are considered with an account of kinetic instability processes. These processes strongly influence condition of magnon Bose-Einstein condensate formation. It is shown that the number of condensed magnons increases and the threshold of condensate formation decreases when kinetic instability processes are present in a system. Obtained results are important for further development of Bose-Einstein condensation theory for nonequilibrium magnons in magnetics. |
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| ISSN: | 2077-6772 |