Coherent dynamics of magnetoexcitons in semiconductor nanorings

K. Maschke, T. Meier, P. Thomas, S. W. Koch

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The coherent dynamics of magnetoexcitons in semiconductor nanorings following pulsed optical excitation is studied. The calculated temporal evolution of the excitonic dipole moment may be understood as a superposition of the relative motion of electrons and holes and a global circular motion associated with the magnetic-field splitting of these states. This dynamics of the electron-hole pairs can be generated either by local optical excitation of an ordered ring or, alternatively, by homogeneous excitation of rings with broken rotational symmetry due to disorder or band tilting.

Original languageEnglish (US)
Pages (from-to)599-606
Number of pages8
JournalEuropean Physical Journal B
Volume19
Issue number4
DOIs
StatePublished - Feb 2 2001

Keywords

  • 71.35.Cc Intrinsic properties of excitons; optical absorption spectra
  • 71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect
  • 78.66.-w Optical properties of specific thin films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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