Charged exciton dynamics in GaAs quantum wells

Published

Journal Article

We study the dynamics of the charged and neutral excitons in a modulation-doped GaAs quantum well by time-resolved photoluminescence under a resonant excitation. The radiative lifetime of the charged exciton is found to be surprisingly short, 60 ps. This time is temperature independent between 2 and 10 K, and increases by a factor of 2 at 6 T. We discuss our findings in view of present theories of exciton radiative decay. © 1998 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Finkelstein, G; Umansky, V; Bar-Joseph, I; Ciulin, V; Haacke, S; Ganière, J; Deveaud, B

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 58 / 19

Start / End Page

  • 12637 - 12640

Electronic International Standard Serial Number (EISSN)

  • 1550-235X

International Standard Serial Number (ISSN)

  • 1098-0121

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.58.12637

Citation Source

  • Scopus