Applied Physics Letters · 2001 · 43 citations · 14 references
EngineeringColloidal NanocrystalsSe Quantum DotsSemiconductor NanostructuresIi-vi SemiconductorMagnetismQuantum DotsDot DensityNanoscale ScienceMaterials SciencePhysicsNanotechnologySemiconductor MaterialNanocrystalline MaterialSub 10Quantum MagnetismSpintronicsMagneto-optical PropertiesNanomaterialsG FactorsNatural SciencesCondensed Matter PhysicsApplied Physics
We report on the formation of self-assembled semimagnetic (Cd, Mn)Se quantum dots via thermally activated reorganization of an initially two-dimensional film. Incorporation of Mn causes a marked decrease of the dot density, while the size is only slightly affected. Magneto-optical data are consistent with a homogeneous distribution of the magnetic ions. We observe g factors as large as 200, enabling control of individual carrier spins on a sub 10 nm length scale.
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