Localization and many-body interactions in the quantum Hall effect determined by polarized optical emission

B. B. Goldberg*, D. Heiman, M. Dahl, A. Pinczuk, L. Pfeiffer, K. West

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Polarization analysis of optical emission from the electron gas in GaAs single quantum wells discriminates the separate contributions from spin-split electron states. In the extreme quantum limit, the vastly different electron populations of these two states allows the study of many-body phenomena in the presence of localization. Reduction in electron screening of the hole at =1 appears to cause energy shifts in narrow quantum wells, while electron-hole binding dominates in wider wells. Evidence of a technique probing the spin-configuration of fractional quantum Hall states is also presented.

Original languageEnglish (US)
Pages (from-to)4006-4009
Number of pages4
JournalPhysical Review B
Volume44
Issue number8
DOIs
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Condensed Matter Physics

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