Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems

Abstract

We show electrical coherent manipulation of quadrupole-split nuclear spin states in a GaAs/AlGaAs heterostructure on the basis of the breakdown of quantum Hall effect. The electric quadrupole splitting in nuclear spin energy levels is intentionally enhanced by applying an external stress to the heterostructure. Nuclear magnetic resonance spectra with clearly separated triple peaks are obtained, and Rabi oscillations are observed between the nuclear spin energy levels. The decay of the spin-echo signal is compared between the cases before and after the enhancement of quadrupole splitting.

4 pages, 4 figures

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• An all silicon quantum computer
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Cited by in corpus (4)

• Nuclear Spin Dynamics of Ionized Phosphorus Donors in Silicon
• Interaction of Strain and Nuclear Spins in Silicon: Quadrupolar Effects on Ionized Donors
• Landauer-Büttiker approach for hyperfine mediated electronic transport in the integer quantum Hall regime
• Probing strain modulation in a gate-defined one dimensional electron system