Exciton luminescence in the quantum hall and electron solid regimes

D. Heiman, A. Pinczuk, H. Okamura, M. Dahl, B. S. Dennis, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

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Abstract

Optical studies in the regime of the quantum Hall effect (QHE) reveal complex behavior related to the strongly interacting 2D electron system. In the following we review our recent investigations of exciton luminescence in high-mobility GaAs electron systems. Several novel phenomena are observed, including additional exciton peaks at high magnetic fields, intensity variations and energy shifts coincident with the quantum Hall effect, strongly suppressed recombination at ν = 1 and ν = 1 3, and peak splitting in the electron solid regime. The experiments were made using picosecond time-resolved PL measurements, dilution refrigerator temperatures (T > 0.05 K), and high magnetic fields (B ≤ 20 T).

Original languageEnglish (US)
Pages (from-to)315-320
Number of pages6
JournalPhysica B: Physics of Condensed Matter
Volume201
Issue numberC
DOIs
StatePublished - 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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