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Abstract
Based on our extended generalized pair approximation, a theoretical method is presented which realistically describes the exchange-interaction effects in dilute magnetic semiconducting quantum structures with moderate magnetic ion concentrations ( x ⩽ 10%). As an illustration of our approach, we have calculated the Zeeman splittings in Cd 1− x Mn x Te showing clearly the correlation between the mean spin projection of magnetic ions and the related p—d and d—d exchange integrals. On the other hand, our analysis of the Zeeman splittings in Cd 1− x Mn x Te/Cd 1− x− y Mn x Mg y Te quantum structures with different well widths demonstrates that the data are well described, within the experimental error, with the bulk values of the sp—d and d—d exchange-interaction constants.
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