Hot Photoluminescence in CdTe/CdMnTe Quantum Well Structures Grown by Molecular Beam Epitaxy |
M. Godlewski, T. Wojtowicz, G. Karczewski, J. Kossut Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland J.P. Bergman, P.O. Holtz and B. Monemar Department of Physics and Measurement Technology, Linköping University, 581 83 Linköping, Sweden |
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A step-like emission is observed for CdTe/CdMnTe structures δ-doped with In. The new photoluminescence cannot be explained by neither the Raman process nor by the "ordinary" hot photoluminescence. We propose that magnetic interactions are responsible for the new photoluminescence appearing due to a dramatic increase in a thermalization time of hot excitons. |
DOI: 10.12693/APhysPolA.92.765 PACS numbers: 78.47.+p, 78.55.Et |