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.
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页数：4
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