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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2012, Volume 95, Issue 11, Pages 653–658
(Mi jetpl2569)
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This article is cited in 15 scientific papers (total in 15 papers)
CONDENSED MATTER
Surface acoustic wave controlled charge dynamics in a thin InGaAs quantum well
F. J. R. Schüleinab, J. Pustiowskiba, K. Mullerc, M. Bichlerc, G. Koblmullerc, J. J. Finleyc, A. Wixforthab, H. J. Krennerba a Center for NanoScience CeNS
b University of Augsburg
c Walter Schottky Institut, Technische Universität München
Abstract:
We experimentally study the optical emission of a thin quantum well and its
dynamic modulation by a surface acoustic wave (SAW). We observe a characteristic
transition of the modulation from one maximum to two maxima per SAW cycle as the
acoustic power is increased which we find in good agreement with numerical calculations
of the SAW controlled carrier dynamics. At low acoustic powers the carrier mobilites limit
electron-hole pair dissociation, whereas at high power levels the induced electric fields
give rise to efficient acousto-electric carrier transport. The direct comparison between the
experimental data and the numerical simulations provide an absolute calibration of the
local SAW phase.
Received: 23.04.2012
Citation:
F. J. R. Schülein, J. Pustiowski, K. Muller, M. Bichler, G. Koblmuller, J. J. Finley, A. Wixforth, H. J. Krenner, “Surface acoustic wave controlled charge dynamics in a thin InGaAs quantum well”, Pis'ma v Zh. Èksper. Teoret. Fiz., 95:11 (2012), 653–658; JETP Letters, 95:11 (2012), 575–580
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https://www.mathnet.ru/eng/jetpl2569 https://www.mathnet.ru/eng/jetpl/v95/i11/p653
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Abstract page: | 187 | Full-text PDF : | 45 | References: | 31 |
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