Mechanism of shakeup processes in the photoluminescence of a two-dimensional electron gas at high magnetic fields

Journal Article

We observe shakeup processes in the photoluminescence spectra of a two-dimensional electron gas in a GaAs/AlxGa1-xAs quantum well at high magnetic fields. We find that when the electrons occupy only the lowest Landau level these processes are strongly suppressed. We show that this behavior can be accounted for by first-principles calculations. We use the same considerations to explain the giant intensity of the shakeup line, which appears just below the main luminescence line.

Duke Authors

Cited Authors

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

Published Date

  • 1997

Published In

  • Physical Review B - Condensed Matter and Materials Physics

Volume / Issue

  • 56 / 16

Start / End Page

  • 10326 - 10331