Negatively and positively charged excitons in quantum wells

Published

Journal Article

We report the observation of the positively charged exciton and of the triplet state of the negatively charged exciton in modulation doped GaAs quantum wells. Applying a gate voltage at high magnetic fields we find that the photoluminescence line of the two-dimensional electron gas smoothly transforms into a negatively charged exciton and not into a neutral exciton. The Zeeman splitting of this line exhibits an abrupt change at the metal-insulator transition. © 1996 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Finkelstein, G; Shtrikman, H; Bar-Joseph, I

Published Date

  • January 1, 1996

Published In

Volume / Issue

  • 53 / 4

Start / End Page

  • R1709 - R1712

Electronic International Standard Serial Number (EISSN)

  • 1550-235X

International Standard Serial Number (ISSN)

  • 1098-0121

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.53.R1709

Citation Source

  • Scopus