Le Journal de Physique IV 03 (1993) C5-79-C5-82
The lifetime of quasi-free exciton magnetic polaron in a quantum well with semimagnetic barriersA.V. KAVOKIN
A.F. Ioffe Physico-Technical Institute, 194021 Politechnicheskaya 26, St. Petersburg, Russia
The calculation of the radiative lifetime of a localized exciton confined in a quantum well is performed for CdTe/(Cd.Mn)Te structure where the quasi-free exciton magnetic polaron can be formed. There is shown that the polaron induced squeezing of the in-plane esciton localization radius leads to the increase of the lifetime. The lifetime dependence on the quantum well width is found to be altered by the polaronic effect in very thin CdTe/(Cd.Mn)Te quantum wells.
© EDP Sciences 1993