title: Hole-nuclear spin interaction in quantum dots.
abstract: 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.
authors.affiliation: Université Pierre et Marie Curie-Paris6, UMR 7588, INSP, Paris, F-75015 France.
authors.forename: B
authors.initials: B
authors.lastname: Eble
authors.forename: C
authors.initials: C
authors.lastname: Testelin
authors.forename: P
authors.initials: P
authors.lastname: Desfonds
authors.forename: F
authors.initials: F
authors.lastname: Bernardot
authors.forename: A
authors.initials: A
authors.lastname: Balocchi
authors.forename: T
authors.initials: T
authors.lastname: Amand
authors.forename: A
authors.initials: A
authors.lastname: Miard
authors.forename: A
authors.initials: A
authors.lastname: Lemaître
authors.forename: X
authors.initials: X
authors.lastname: Marie
authors.forename: M
authors.initials: M
authors.lastname: Chamarro