Abstract
The kinetics and polarized spectra of low-temperature photoluminescence in semiconductor type-II superlattices based on ZnMnSe/ZnSSe structures have been studied in detail. Processes responsible for the formation of short-lived (about 1 ns) and long-lived (above 10 ns) localized exciton-type magnetic polarons (EMPs) in these systems are determined, and the relative contributions due to magnetic and nonmagnetic localization of heavy holes to the formation of such polarons are evaluated. A phenomenological model is constructed that takes into account the energy distribution of charge-carrier traps with respect to their level depths and employs the EMP parameters determined for ZnMnSe quantum wells. Within the proposed model, all spectral, temporal, and temperature-dependent features in the behavior of magnetophotoluminescence observed for the system under consideration can be consistently and quantitatively described.
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Original Russian Text © A.A. Maksimov, A.V. Pashkov, A.S. Brichkin, V.D. Kulakovskii, I.I. Tartakovskii, A.A. Toropov, S.V. Ivanov, 2008, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2008, Vol. 133, No. 6, pp. 1290–1297.
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Maksimov, A.A., Pashkov, A.V., Brichkin, A.S. et al. Long-lived localized magnetic polarons in ZnMnSe/ZnSSe type-II superlattices. J. Exp. Theor. Phys. 106, 1130–1136 (2008). https://doi.org/10.1134/S1063776108060125
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DOI: https://doi.org/10.1134/S1063776108060125