Hole-nuclear spin interaction in quantum dots.
Phys Rev Lett
; 102(14): 146601, 2009 Apr 10.
Article
em En
| MEDLINE
| ID: mdl-19392463
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.
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2009
Tipo de documento:
Article