Photoluminescence signature of Skyrmions at ν=1

T. Portengen, J. Chapman, V. Nikos Nicopoulos, N. Johnson

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The photoluminescence spectrum of quantized Hall states near filling factor ν=1 is investigated theoretically. For ν⩾1 the spectrum consists of a right-circularly polarized (RCP) line and a left-circularly polarized (LCP) line, whose mean energy (i) does not depend on the electron g factor for spin- quasielectrons; (ii) does depend on g for charged spin-texture excitations (Skyrmions). For ν<1 the spectrum consists of a LCP line shifted down in energy from the LCP line at ν⩾1. The g-factor dependence of the redshift of the LCP line determines the nature of the negatively charged excitations.

Original languageEnglish (US)
Pages (from-to)R7367-R7370
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume55
Issue number12
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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