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Type: Artigo de periódico
Title: Emission of monochromatic microwave radiation from a nonequilibrium condensation of excited magnons
Author: Vannucchi, FS
Vasconcellos, AR
Luzzi, R
Abstract: The observation of monochromatic emission of radiation from a nonequilibrium Bose-Einstein-like condensate of magnons suggests the possibility of creating a monochromatic microwave generator pumped by incoherent broadband sources. The device would have a tunable emitted frequency as a function of the applied constant magnetic field. We present an analysis of the mechanisms of interaction between the condensate of magnons and the radiation field producing the super-radiant emission of photons. The conditions for the emergence of the super-radiance are described, as well as an analysis of its dependence on the thickness of the sample and the applied static magnetic field intensity. (C) 2013 AIP Publishing LLC.
Country: EUA
Editor: Amer Inst Physics
Citation: Applied Physics Letters. Amer Inst Physics, v. 103, n. 7, 2013.
Rights: aberto
Identifier DOI: 10.1063/1.4818312
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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