Optically probing the fine structure of a single Mn atom in an InAs quantum dot

Abstract

We report on the optical spectroscopy of a single InAs/GaAs quantum dot (QD) doped with a single Mn atom in a longitudinal magnetic field of a few Tesla. Our findings show that the Mn impurity is a neutral acceptor state A^0 whose effective spin J=1 is significantly perturbed by the QD potential and its associated strain field. The spin interaction with photo-carriers injected in the quantum dot is shown to be ferromagnetic for holes, with an effective coupling constant of a few hundreds of micro-eV, but vanishingly small for electrons.

5 pages, 3 figures

References in corpus (8)

• Quantum Computing in Molecular Magnets
• Single-shot read-out of an individual electron spin in a quantum dot
• Atom-by-Atom Substitution of Mn in GaAs and Visualization of their Hole-Mediated Interactions
• Dynamic nuclear polarization of a single charge-tunable InAs/GaAs quantum dot
• Geometrical effects on the optical properties of quantum dots doped with a single magnetic atom
• Single Electron Transport in electrically tunable nanomagnets
• Selective optical manipulation of the spin state of a single magnetic impurity in a semiconductor quantum dot
• Manipulating the exciton fine structure of single CdTe/ZnTe quantum dots by an in-plane magnetic field

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