Suppression of Zeeman Gradients by Nuclear Polarization in Double Quantum Dots
Suppression of Zeeman Gradients by Nuclear Polarization in Double Quantum Dots
We use electric dipole spin resonance to measure dynamic nuclear polarization in InAs nanowire quantum dots. The resonance shifts in frequency when the system transitions between metastable high and low current states, indicating the presence of nuclear polarization. We propose that the low and the high current states correspond to …