Stabilizing nuclear spins around semiconductor electrons via the interplay of optical coherent population trapping and dynamic nuclear polarization

A. R. Onur*, J.P. de Jong, D. O'Shea, D. Reuter, A. D. Wieck, C.H. Wal, van der

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

5 Citaten (Scopus)
24 Downloads (Pure)

Samenvatting

We experimentally demonstrate how coherent population trapping (CPT) for donor-bound electron spins in GaAs results in autonomous feedback that prepares stabilized states for the spin polarization of nuclei around the electrons. CPT was realized by excitation with two lasers to a bound-exciton state. Transmission studies of the spectral CPT feature on an ensemble of electrons directly reveal the statistical distribution of prepared nuclear-spin states. Tuning the laser driving from blue to red detuned drives a transition from one to two stable states. Our results have importance for ongoing research on schemes for dynamic nuclear-spin polarization, the central spin problem, and control of spin coherence.

Originele taal-2English
Artikelnummer161204
Aantal pagina's5
TijdschriftPhysical Review. B: Condensed Matter and Materials Physics
Volume93
Nummer van het tijdschrift16
DOI's
StatusPublished - 14-apr.-2016

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