Fachgruppe Nanostrukturierte Materialien    

The coherent dynamics of locally interacting spins of carriers and magnetic atoms in the crystal matrix of self-assembled CdMnSe?ZnSe quantum dots was analyzed by means of time resolved Kerr rotation. We demonstrate that even in such a system of tightly interacting spins a coherent transfer of spin between the different subsystems is possible. Strong evidence for an enhancement of the spin coherence time of both the carrier and the manganese system with respect to higher dimensional structures is found.