Dynamics of zero-dimensional excitons in a semimagnetic environment

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

Research output: Contribution to journalArticle

5 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 Aug 14

Fingerprint

Polarons
Time measurement
Excitons
Semiconductor quantum dots
Luminescence
excitons
Magnetic fields
polarons
decay
time constant
quantum dots
time measurement
retarding
luminescence
life (durability)
magnetic fields
LDS 751

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Dynamics of zero-dimensional excitons in a semimagnetic environment. / Seufert, J.; Scheibner, M.; Bacher, G.; Forchel, A.; Lee, Sang Hoon; Dobrowolska, M.; Furdyna, J. K.

In: Physica Status Solidi (B) Basic Research, Vol. 229, No. 2, 14.08.2002, p. 727-731.

Research output: Contribution to journalArticle

Seufert, J. ; Scheibner, M. ; Bacher, G. ; Forchel, A. ; Lee, Sang Hoon ; Dobrowolska, M. ; Furdyna, J. K. / Dynamics of zero-dimensional excitons in a semimagnetic environment. In: Physica Status Solidi (B) Basic Research. 2002 ; Vol. 229, No. 2. pp. 727-731.
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