Singlet-triplet minus mixing and relaxation lifetimes in a double donor dot

Journal article (2018)

Authors

S. K. Gorman University of New South Wales
M. A. Broome University of New South Wales
M. G. House University of New South Wales
S. J. Hile University of New South Wales
J. Keizer University of New South Wales, Centre of Excellence for Quantum Computation and Communication Technology
D. Keith University of New South Wales
T.F. Watson QCD/Vandersypen Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft, University of New South Wales, Centre of Excellence for Quantum Computation and Communication Technology
W. J. Baker University of New South Wales
M. Y. Simmons University of New South Wales
Research Group
QCD/Vandersypen Lab (QuTech Advanced Research Centre) (TU Delft)
More Info
expand_more

Published Date

2018

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

QuTech Advanced Research Centre

Department

Quantum Computing Division

Research Group

QCD/Vandersypen Lab

Abstract

We measure singlet-triplet mixing in a precision fabricated double donor dot comprising 2 and 1 phosphorus atoms separated by 16 ± 1 nm. We identify singlet and triplet-minus states by performing a sequential independent spin readout of the two electron system and probe its dependence on magnetic field strength. The relaxation of singlet and triplet states is measured to be 12.4 ± 1.0 s and 22.1 ± 1.0 s, respectively, at Bz = 2.5 T.