Dynamics of zero-dimensional excitons in a semimagnetic environment

J. Seufert, M. Scheibner, G. Bacher, A. Forchel, S. Lee, M. Dobrowolska, J. K. Furdyna

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Time-resolved measurements on self-assembled CdSe/ZnMnSe quantum dots are presented. A rather long excitonic decay time of 580 ps is found which indicates a suppression of nonradiative recombination via the internal Mn2+ transition. The long excitonic lifetime allows for the formation of magnetic polarons, as evidenced by a transient redshift of the luminescence emission with a time constant of 125 ps. In a magnetic field, a decrease of the measured excitonic decay time is observed and a possible mechanism based on an interplay between bright and dark excitons is discussed.

Original languageEnglish
Pages (from-to)727-731
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume229
Issue number2
DOIs
Publication statusPublished - 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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