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Behavior of excitons and trions in CdTe/CdMgTe quantum-well structures with variations in temperature |
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| Authors: | D A Andronikov M Fehr V P Kochereshko S A Crooker G Karczewski |
| Institution: | 1.Ioffe Physicotechnical Institute,Russian Academy of Sciences,St. Petersburg,Russia;2.Technische Universit?t München,Garching,Germany;3.St. Petersburg State University,St. Petersburg,Russia;4.National High Magnetic Field Laboratory,Los Alamos,United States;5.Institute of Physics,Polish Academy of Sciences,Warsaw,Poland |
| Abstract: | The temperature-induced variations in the photoluminescence spectra measured in a magnetic field of trions and excitons in CdTe/CdMgTe quantum wells with modulated doping are studied. It is found that the temperature-induced redistribution of the intensity between the exciton and trion emission lines in a magnetic field is opposite to that expected from the simple Boltzmann distribution model. Coupled rate equations for the trion-exciton system are solved to construct the temperature dependences of the exciton and trion emission line intensities. The relations thus calculated are in good agreement with experiment. |
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