Nanostructures of diluted magnetic semiconductors show varieties of optical phenomena caused by the interaction of electrons and holes with magnetic ions in the confined electronic states. We present giant magneto-optical effects and ultrafastexciton dynamics in two-dimensional quantum wells of the Cd{sub}1-xMn{sub}xTe/ZnTe system and quantum dots of Cd{sub}1-xMn{sub}xSe.
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