  We present the photoluminescence excitation study of the self-assembled
CdTe/ZnTe quantum dots doped with manganese ions. We demonstrate the
identification method of spontaneously coupled quantum dots pairs containing
single Mn2+ ions. As the result of the coupling, the resonant absorption of the
photon in one quantum dot is followed by the exciton transfer into a
neighboring dot. It is shown that the Mn2+ ion might be present in the
absorbing, emitting or both quantum dots. The magnetic properties of the Mn2+
spin are revealed by a characteristic sixfold splitting of the excitonic line.
The statistics of the value of this splitting is analyzed for the large number
of the dots and gives the information on the maximum density of the neutral
exciton wave function.
