Electrical coherent control of nuclear spins in a breakdown regime of quantum Hall effect
arXiv:0705.3547 · doi:10.1063/1.2778465
Abstract
Using a conventional Hall-bar geometry with a micro-metal strip on top of the surface, we demonstrate an electrical coherent control of nuclear spins in an AlGaAs/GaAs semiconductor heterostructure. A breakdown of integer quantum Hall (QH) effect is utilized to dynamically polarize nuclear spins. By applying a pulse rf magnetic field with the metal strip, the quantum state of the nuclear spins shows Rabi oscillations, which is detected by measuring longitudinal voltage of the QH conductor.
arXiv comment3 pages, 4 figures
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Cited by in corpus (8)
- Quantum state tomography of large nuclear spins in a semiconductor quantum well: Optimal robustness against errors as quantified by condition numbers
- Dynamic Nuclear Polarization and Nuclear Magnetic Resonance in the Simplest Pseudospin Quantum Hall Ferromagnet
- Nuclear spin coherence in a quantum wire
- Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems
- 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
- Spatial gradient of dynamic nuclear spin polarization induced by breakdown of quantum Hall effect
- Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states