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.
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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 -