Nonequilibrium Bose-Einstein condensation of hot magnons

被引:9
|
作者
Vannucchi, Fabio Stucchi [1 ]
Vasconcellos, Aurea Rosas [1 ]
Luzzi, Roberto [1 ]
机构
[1] State Univ Campinas UNICAMP, Inst Phys Gleb Wataghin, Dept Condensed Matter Phys, BR-13083859 Campinas, SP, Brazil
来源
PHYSICAL REVIEW B | 2010年 / 82卷 / 14期
基金
巴西圣保罗研究基金会;
关键词
STATISTICAL ENSEMBLE FORMALISM; THERMODYNAMICS; AMPLIFICATION; BEAM;
D O I
10.1103/PhysRevB.82.140404
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present an analysis of the emergence of a nonequilibrium Bose-Einstein-type condensation of magnons in radio-frequency pumped magnetic thin films, which has recently been experimentally observed. A complete description of all the nonequilibrium processes involved is given. It is demonstrated that the phenomenon is another example of the emergence of Bose-Einstein- type condensation in nonequilibrium many-boson systems embedded in a thermal bath, a phenomenon evidenced decades ago by the renowned late Herbert Frohlich.
引用
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页数:4
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