Introducing single Mn2+ ions into spontaneously coupled quantum dot pairs

Abstract

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.

5 pages, 4 figures, submitted to PRB

References in corpus (6)

• Optically probing the fine structure of a single Mn atom in an InAs quantum dot
• Designing quantum dots for solotronics
• Optically induced energy and spin transfer in non-resonantly coupled pairs of self-assembled CdTe/ZnTe quantum dots
• Brightening of dark excitons in a single quantum dot containing a single magnetic ion
• In-plane radiative recombination channel of a dark exciton in self-assembled quantum dots
• Fine structure of exciton excited levels in a quantum dot with a magnetic ion

Cited by in corpus (4)

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• Coherent precession of an individual 5/2 spin
• Mechanisms of optical orientation of an individual Mn${}^{2+}$ ion spin in a II-VI quantum dot
• Magnetic-field-induced abrupt spin state transition in a quantum dot containing magnetic ions