Observation of hysteretic transport due to dynamic nuclear spin polarization in a GaAs lateral double quantum dot.

Abstract

We report a new transport feature in a GaAs lateral double quantum dot that emerges for magnetic-field sweeps and shows hysteresis due to dynamic nuclear spin polarization (DNP). This DNP signal appears in the Coulomb blockade regime by virtue of the finite interdot tunnel coupling and originates from the crossing between ground levels of the spin triplet… (More)

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