Dynamics of excitonic magnetic polarons in nanostructure diluted magnetic semiconductors

作者: Yasuo Oka , Jinxi Shen , Kazumasa Takabayashi , Nobuhiro Takahashi , Hiroyuki Mitsu

DOI: 10.1016/S0022-2313(99)00078-2

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摘要: Abstract Exciton dynamics has been studied in quantum wells, dots and wires of diluted magnetic semiconductors by time-resolved photoluminescence spectroscopy. The transient exciton with resonant excitation Cd 1− x Mn Te/ZnTe ( =0.1) multiple wells shows the formation polarons well excitons. Free localized states excitonic are distinguished from difference lifetimes binding energies. polaron accompanied emission or absorption LO phonons was also observed. Quantum Se grown self-organization mode showed luminescence confined excitons dots. ions induce large Zeeman shifts polarized emissions parallel to wires. polarization decreased external field perpendicular discussed.

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