Abstract
The normal (Te grown on CdTe) and inverted (CdTe on Te) interfaces are studied separately using a quantitative model of the Zeeman effect of excitons in asymmetric CdTe quantum wells with a magnetic Te barrier on one side and a nonmagnetic Te barrier on the opposite side. The extrinsic effect (dilution of Mn) is dominant at the inverted interface, while the normal interface allows a rather low upper bound to the intrinsic interface effect (due to missing nearest neighbors). Experimental results agree well with model profiles assuming a complete Cd/Mn exchange during growth between the surface layer and the subsurface layer.
DOI:https://doi.org/10.1103/PhysRevB.50.2011
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