Abstract
Time and spatial-resolved circular-polarized photoluminescence (PL) measurements were performed on an $n\ensuremath{-}$type modulation-doped (Cd,Mn)Te quantum well. The spatial extent of PL in the right circular polarization increased with an increase in magnetic fields, although the PL extent showed a tendency to contract with the magnetic fields in the left one. We successfully observed the time development of an electric-field-induced drift of a negatively charged exciton ${X}^{\ensuremath{-}}$. The drift was found to be promoted by the magnetic fields. These peculiar phenomena were resulting from the distinctive properties of the diluted magnetic semiconductor, (CdMn)Te.
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