Time-resolved photoluminescence study of exciton localisation in Cd1-xMnxTe
- 20 December 1986
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 19 (35) , L829-L834
- https://doi.org/10.1088/0022-3719/19/35/001
Abstract
The authors have measured time-resolved photoluminescence from the dilute magnetic semiconductor Cd1-xMnxTe for x up to 0.3. For x=0.09 they observe exciton localisation both by neutral acceptors and by alloy potential fluctuations; for higher x-values they observe localisation in alloy potential fluctuations to be dominant. In the latter case localisation occurs on a timescale of <20 ps. Subsequent rapid transfer to lower-energy localised states, with a characteristic time of about 150 ps, is interpreted as being due in part to magnetic polaron effects.Keywords
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