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High-field optically detected nuclear magnetic resonance in GaAs

M. Poggio·D. D. Awschalom
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Abstract

A method for high-field optically detected nuclear magnetic resonance (ODNMR) is developed sensitive to 10**8 nuclei. Nuclear spin transitions are induced using a radio frequency coil and detected through Faraday rotation spectroscopy. Unlike conventional ODNMR, which is limited to low fields and relies on the measurement of time-averaged luminescence polarization, this technique monitors nuclear polarization through time-resolved measurements of electron spin dynamics. Measurements in a (110) GaAs quantum well reveal Ga-69, Ga-71, and As-75 resonances and their quadrupolar splittings while resolving changes in nuclear polarization of 0.02%.

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M. Poggio, D. D. Awschalom. 2005-01-26. High-field optically detected nuclear magnetic resonance in GaAs. https://doi.org/10.1063/1.1923191

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