Recombination and Spin Dynamics of Excitons in III-V/II-VI:Mn Heterovalent Double Quantum Wells.
Toropov, A. A.
Terent'ev, Ya. V.
Ivanov, S. V.
Kop'ev, P. S.
Subject Terms :
PARTICLES (Nuclear physics)
AIP Conference Proceedings; 2007, Vol. 893 Issue 1, p1299-1300, 2p, 3 Graphs
Time-resolved magneto-photoluminescence spectroscopy is applied to elucidate dynamics of excitons in GaAs/AlGaAs/ZnSe/ZnCdMnSe heterovalent double quantum wells (QW). An essential slowdown of the recombination rate was observed, resulting from exciton localization due to the compositional disordering at the AlGaAs/ZnSe heterovalent interface. It was found that both exciton lifetime and spin lifetime can be controlled by varying the detuning of the single-QW electron levels. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]
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