Phonon amplification in a quasi-one-dime
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O.A.C. Nunes; A.L.A. Fonseca; D.A. Agrello
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Article
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2002
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Elsevier Science
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English
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We propose a calculation for the amplification coefficient ฮณ q of acoustical phonons interacting with electrons in a quasi-one-dimensional GaAs channel subjected to an external dc electric field. Two regimes of temperatures have been investigated and it has been found, by considering only intrasubba