Dynamic carrier distribution in quantum wells modulated by surface acoustic waves - art. no. 041304

Authors
Alsina, F Santos, PV Hey, R Garcia-Cristobal, A Cantarero, A
Citation
F. Alsina et al., Dynamic carrier distribution in quantum wells modulated by surface acoustic waves - art. no. 041304, PHYS REV B, 6404(4), 2001, pp. 1304
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6404
Issue
4
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010715)6404:4<1304:DCDIQW>2.0.ZU;2-8
Abstract
We have investigated the dynamics of photogenerated carriers under surface acoustic wave (SAW) fields in GaAs quantum wells using spatially and time-r esolved photoluminescence (PL). The frequency and phase of the PL oscillati ons under a SAW yield information about the carrier distribution and the ba nd-gap modulation induced by the SAW. We directly prove that the transport properties of the carriers ultimately control their distribution. storage a nd, subsequent recombination in the modulated potential.