Spatiotemporal carrier dynamics in quantum wells under surface acoustic waves

A. García-Cristóbal, A. Cantarero, F. Alsina, and P. V. Santos
Phys. Rev. B 69, 205301 – Published 3 May 2004
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Abstract

We present a theoretical study of transport and recombination of electrons and holes in quantum wells under the piezoelectric field induced by a surface acoustic wave (SAW). Our model calculations, which include free carriers and excitons in the framework of the drift-diffusion equations, describe the spatial and time dependences of the photoluminescence intensity on excitation density and SAW amplitude, and show overall agreement with recent microphotoluminescence experiments performed on GaAs/(Al,Ga)As quantum wells and quantum wires.

  • Received 7 November 2003

DOI:https://doi.org/10.1103/PhysRevB.69.205301

©2004 American Physical Society

Authors & Affiliations

A. García-Cristóbal and A. Cantarero

  • Materials Science Institute, University of Valencia, P.O. Box 22085, E-46071 Valencia, Spain

F. Alsina and P. V. Santos

  • Paul-Drude-Institut für Festkörperelektronik, Hausvogteitplatz 5-7, 10117 Berlin, Germany

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Issue

Vol. 69, Iss. 20 — 15 May 2004

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