Author/Authors :
A. Forchel and G. Bacher ، نويسنده , , H. Sch?mig، نويسنده , , M. Scheibner، نويسنده , , A. Forchel، نويسنده , , A.A Maksimov، نويسنده , , A.V. Chernenko، نويسنده , , P.S. Dorozhkin، نويسنده , , V.D. Kulakovskii، نويسنده , , T. Kennedy، نويسنده , , T.L. Reinecke، نويسنده ,
Abstract :
Self-assembled Cd(Mn)Se/Zn(Mn)Se quantum dots have been investigated by means of spatially and time-resolved magneto-optical spectroscopy. In such quasi zero-dimensional diluted magnetic semiconductors, the exchange interaction couples the spins of optically generated charge carriers with localized magnetic ion spins. We demonstrate that this can be used on the one hand to monitor nanoscale magnetization with a resolution of <100 μB by a purely optical technique and on the other hand to optically manipulate the magnetization in a semiconductor quantum dot.