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arXiv · 0705.1104

Large nuclear Overhauser fields detected in vertically-coupled double quantum dots

J. Baugh·Y. Kitamura·K. Ono·S. Tarucha
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Abstract

We report the electrical induction and detection of dynamic nuclear polarization in the spin-blockade regime of double GaAs vertical quantum dots. The largest Overhauser field observed was about 4 Tesla, corresponding to a nuclear polarization of about 40% in the present device. A phenomenological model is presented to provide a qualitative understanding of our results.

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J. Baugh, Y. Kitamura, K. Ono, S. Tarucha. 2007-07-03. Large nuclear Overhauser fields detected in vertically-coupled double quantum dots. https://doi.org/10.1103/physrevlett.99.096804

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