Abstract
Nonlinear interaction of an intense surface acoustic wave (SAW) with a 2D electron-hole plasma generated by light in a semiconductor quantum well near a piezoelectric crystal is investigated. It is shown that, in a strongly nonlinear regime, the acoustoelectric interaction is enhanced because of the accumulation of carriers in the field of an intense SAW. In addition, in a strongly nonlinear regime, the dissipation of the acoustic wave energy increases and the sound velocity decreases. These dependences fundamentally differ from those observed in a unipolar plasma. For high sound intensities, analytical results are obtained.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 72, No. 4, 2000, pp. 273–278.
Original Russian Text Copyright © 2000 by Kalame\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)tsev, Govorov, Kutschera, Wixforth.
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Kalameitsev, A.V., Govorov, A.O., Kutschera, H.J. et al. Enhancement of the nonlinear acoustoelectric interaction in a photoexcited plasma in a quantum well. Jetp Lett. 72, 190–194 (2000). https://doi.org/10.1134/1.1320110
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DOI: https://doi.org/10.1134/1.1320110