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

页数：4

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