Spatiotemporal carrier dynamics in quantum wells under surface acoustic waves

6533b854fe1ef96bd12ae0d0

RESEARCH PRODUCT

Spatiotemporal carrier dynamics in quantum wells under surface acoustic waves

F. Alsina Andrés Cantarero Alberto García-cristóbal Paulo V. Santos

subject

Physics Electron mobility Photoluminescence Condensed matter physics Field (physics)Condensed Matter::Other Surface acoustic wave Acoustic wave Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Quantum Quantum well

description

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.

year	journal	country	edition	language
2004-05-03	Physical Review B

https://doi.org/10.1103/physrevb.69.205301

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