Single-exciton spectroscopy of single Mn doped InAs quantum dots

The optical spectroscopy of a single InAs quantum dot doped with a single Mn atom is studied using amodel Hamiltonian that includes the exchange interactions between the spins of the quantum dot electron-holepair, the Mn atom, and the acceptor hole. Our model permits linking the photoluminescence spectra to the Mnspin states after photon emission. We focus on the relation between the charge state of the Mn, A0 or A−, andthe different spectra which result through either band-to-band or band-to-acceptor transitions. We consider bothneutral and negatively charged dots. Our model is able to account for recent experimental results on single Mndoped InAs photoluminescence spectra and can be used to account for future experiments in GaAs quantumdots. Similarities and differences with the case of single Mn doped CdTe quantum dots are discussed.