Bias Voltage Dependence of the Electron Spin Depolarization in Quantum Wires in the Quantum Hall Regime Detected by the Resistively Detected NMR

摘要

We performed the resistively-detected nuclear magnetic resonance (RDNMR) to study the electron spin polarization in the non-equilibrium quantum Hall regime. By measuring the Knight shift, we derive source-drain bias voltage dependence of the electron spin polarization in quantum wires. The electron spin polarization shows minimum value around the threshold voltage of the dynamic nuclear polarization.