The indirect exchange is treated for magnetic moments located in a thin semiconductor layer which is imbedded in the corresponding nonmagnetic quantum well host. The interaction is mediated by carriers provided by remote doping. The specific case of Cd1−xMnxTe is considered. A significant Curie–Weiss temperature is obtained for several possible arrangements of the magnetic layer and the quantum well widths, and the carrier (hole) density. We found a substantial contribution of virtual transitions involving continuum states for high enough carrier density.
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Boselli et al. (1999) studied this question.
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