Electrical polarization of nuclear spins in a breakdown regime of quantum Hall effect

Abstract

We have developed a method for electrical polarization of nuclear spins in quantum Hall systems. In a breakdown regime of odd-integer quantum Hall effect (QHE), excitation of electrons to the upper Landau subband with opposite spin polarity dynamically polarizes nuclear spins through the hyperfine interaction. The polarized nuclear spins in turn accelerate the QHE breakdown, leading to hysteretic voltage-current characteristics of the quantum Hall conductor.

3 pages, 4 figures, submitted to Appl. Phys. Lett

References in corpus (5)

• Nuclear spin induced oscillatory current in spin-blocked quantum dots
• Optical manipulation of nuclear spin by a two-dimensional electron gas
• Electrically-Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall states
• A New Type of Electron Nuclear-Spin Interaction from Resistively Detected NMR in the Fractional Quantum Hall Effect Regime
• Strong, Ultra-narrow Peaks of Longitudinal and Hall Resistances in the Regime of Breakdown of the Quantum Hall Effect

Cited by in corpus (22)

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• Dynamic Nuclear Polarization and Nuclear Magnetic Resonance in the Simplest Pseudospin Quantum Hall Ferromagnet
• Current-induced nuclear-spin activation in a two-dimensional electron gas
• Electrical coherent control of nuclear spins in a breakdown regime of quantum Hall effect
• Dynamic Nuclear Polarization in the Fractional Quantum Hall Regime
• Nuclear spin coherence in a quantum wire
• Current Induced Nuclear Spin Depolarization at Landau Level Filling Factor nu=1/2
• Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems
• Landauer-Büttiker approach for hyperfine mediated electronic transport in the integer quantum Hall regime
• Electric-Field-Induced Nuclear Spin Resonance Mediated by Oscillating Electron Spin Domains in GaAs-Based Semiconductors
• Resistively detected nuclear magnetic resonance via a single InSb two-dimensional electron gas at high temperature
• Dynamic nuclear polarization induced by breakdown of fractional quantum Hall effect
• Phase Diagram of Quantum Hall Breakdown and Non-linear Phenomena for InGaAs/InP Quantum Wells
• Dynamic Nuclear Polarization in a Quantum Hall Corbino Disk
• Dynamic nuclear polarization at high Landau levels in a quantum point contact
• Disorder Enhanced Nuclear Spin Relaxation at Landau Level Filling Factor One
• Resistive detection of nuclear spins in a single quantum dot under Kondo effect regime
• Dynamic nuclear polarization and Knight shift measurements in a breakdown regime of integer quantum Hall effect
• High mobility transport in isotopically-enriched ${}^{12}$C and ${}^{13}$C exfoliated graphene
• Spatial gradient of dynamic nuclear spin polarization induced by breakdown of quantum Hall effect
• Dipole-like dynamical nuclear spin polarization around a quantum point contact
• Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states