Direct measurement of the spin-orbit interaction in a two-electron InAs nanowire quantum dot.

@article{Fasth2007DirectMO,
  title={Direct measurement of the spin-orbit interaction in a two-electron InAs nanowire quantum dot.},
  author={Carina Fasth and Andreas Fuhrer and Lars Samuelson and Vitaly N. Golovach and Daniel Loss},
  journal={Physical review letters},
  year={2007},
  volume={98 26},
  pages={266801}
}
We demonstrate control of the electron number down to the last electron in tunable few-electron quantum dots defined in catalytically grown InAs nanowires. Using low temperature transport spectroscopy in the Coulomb blockade regime, we propose a method to directly determine the magnitude of the spin-orbit interaction in a two-electron artificial atom with strong spin-orbit coupling. Because of a large effective g factor |g(*)|=8+/-1, the transition from a singlet S to a triplet T+ ground state… CONTINUE READING
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