Hole-Nuclear Spin Interaction in Quantum Dots
Résumé
We have measured the carrier spin dynamics in p-doped InAs/GaAs quantum dots by pump-probe and time-resolved photoluminescence experiments. We obtained experimental evidence of the hyperfine interaction between hole and nuclear spins. In the absence of an external magnetic field, our calculations based on dipole-dipole coupling between the hole and the quantum dot nuclei lead to a hole-spin dephasing time for an ensemble of dots of 14 ns, in close agreement with experiments.
Domaines
Matière Condensée [cond-mat]Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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