Photoluminescence in the fractional quantum Hall regime

G. Yusa, H. Shtrikman, I. Bar-Joseph

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

We study the photoluminescence spectrum of a low density (ν < 1) two-dimensional electron gas at high magnetic fields and low temperatures. We find that the spectrum in the fractional quantum Hall regime can be understood in terms of singlet and triplet charged-excitons. We identify the dark triplet charged-exciton and show that it is visible in the spectrum at T < 2 K. We find that its binding energy scales like e2/l, where l is the magnetic length, and it crosses the singlet slightly above 15 T.

Original languageEnglish
Pages (from-to)49-54
Number of pages6
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume12
Issue number1-4
DOIs
Publication statusPublished - 2002 Jan
Externally publishedYes
Event14th International Conference on the - Prague, Czech Republic
Duration: 2001 Jul 302001 Aug 3

Keywords

  • Charged-exciton
  • Fractional quantum Hall effect
  • Photoluminescence

ASJC Scopus subject areas

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

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