Interacting separately confined two-dimensional electron and hole gases: Magnetic field dependence of the circularly polarized photoluminescence

A. Nazimov, E. Cohen, Arza Ron, E. Linder, H. Shtrikman, L. N. Pfeiffer

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

We present a study of interacting, separately confined electron and hole layers that are photoexcited in undoped GaAs/AlAs mixed types I-II quantum wells. The low-temperature interband photoluminescence spectra and circularly polarized integrated intensity were studied as a function of a perpendicularly applied magnetic field (B≤7 T) and 2DEG density (ne≤8×1011 cm-2). The observed rich structure of the lowest Landau index magnetoexcitons and the strong intensity oscillations at integral filling factors are interpreted as due to cooperative 2DEG-2DHG transitions and, possibly, to the formation of weakly bound inter-layer excitons.

Original languageEnglish (US)
Pages (from-to)650-654
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume6
Issue number1
DOIs
StatePublished - Feb 2000
Externally publishedYes
Event13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can
Duration: Aug 1 1999Aug 6 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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