Dynamics of zero-dimensional excitons in a semimagnetic environment

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

doi:10.1002/1521-3951(200201)229:2<727::AID-PSSB727>3.0.CO;2-7

Dynamics of zero-dimensional excitons in a semimagnetic environment

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	727-731
Number of pages	5
Journal	Physica Status Solidi (B) Basic Research
Volume	229
Issue number	2
DOIs	https://doi.org/10.1002/1521-3951(200201)229:2<727::AID-PSSB727>3.0.CO;2-7
Publication status	Published - 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/1521-3951(200201)229:2<727::AID-PSSB727>3.0.CO;2-7

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title = "Dynamics of zero-dimensional excitons in a semimagnetic environment",

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.",

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TY - JOUR

T1 - Dynamics of zero-dimensional excitons in a semimagnetic environment

AU - Seufert, J.

AU - Scheibner, M.

AU - Bacher, G.

AU - Forchel, A.

AU - Lee, S.

AU - Dobrowolska, M.

AU - Furdyna, J. K.

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0036001855

U2 - 10.1002/1521-3951(200201)229:2<727::AID-PSSB727>3.0.CO;2-7

DO - 10.1002/1521-3951(200201)229:2<727::AID-PSSB727>3.0.CO;2-7

M3 - Article

AN - SCOPUS:0036001855

SN - 0370-1972

VL - 229

SP - 727

EP - 731

JO - Physica Status Solidi (B) Basic Research

JF - Physica Status Solidi (B) Basic Research

IS - 2

ER -

Dynamics of zero-dimensional excitons in a semimagnetic environment

Abstract

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