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Interaction of an electron gas with photoexcited electron-hole pairs in modulation-doped GaAs and CdTe quantum wells

  • SUNY Buffalo
  • University of Würzburg

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

The nature of the correlated electron gas and its response to photo-injected electron-hole pairs in nominally undoped and modulation-doped multiple quantum-well structures was studied by experiment and theory, revealing a new type of optically active excitation, magnetoplasmons bound to a mobile valence hole. These excitations are blue-shifted from the corresponding transition of the isolated charged magnetoexciton X-. The observed blue-shift of X- is larger than that of two-electron negative donor D-, in agreement with theoretical predictions.

Original languageEnglish
Pages (from-to)499-502
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume12
Issue number1-4
DOIs
StatePublished - Jan 2002
Event14th International Conference on the - Prague, Czech Republic
Duration: Jul 30 2001Aug 3 2001

Keywords

  • Many-electron effects
  • ODR
  • Semiconductor
  • Trion

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