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Hyperfine-enhanced gyromagnetic ratio of a nuclear spin in diamond

Author(s): Sangtawesin, S; McLellan, CA; Myers, BA; Jayich, AC Bleszynski; Awschalom, DD; et al

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Abstract: The nuclear spin gyromagnetic ratio can be enhanced by hyperfine coupling to the electronic spin. Here we show wide tunability of this enhancement on a (15)Nnuclear spin intrinsic to a single nitrogen-vacancy center in diamond. We perform control of the nuclear spin near the ground state level anti-crossing (GSLAC), where the enhancement of the gyromagnetic ratio from the ground state hyperfine coupling is maximized. We demonstrate a two order of magnitude enhancement of the effective nuclear gyromagnetic ratio compared to the value obtained at 500 G, a typical operating field that is suitable for nuclear spin polarization. Finally, we show that with strong enhancements, the nuclear spin ultimately suffers dephasing from the inhomogeneous broadening of the NMRtransition frequency at the GSLAC.
Publication Date: Aug-2016
Electronic Publication Date: 3-Aug-2016
Citation: Sangtawesin, S, McLellan, CA, Myers, BA, Jayich, AC Bleszynski, Awschalom, DD, Petta, JR. (2016). Hyperfine-enhanced gyromagnetic ratio of a nuclear spin in diamond. NEW JOURNAL OF PHYSICS, 18 (10.1088/1367-2630/18/8/083016
DOI: doi:10.1088/1367-2630/18/8/083016
ISSN: 1367-2630
Type of Material: Journal Article
Journal/Proceeding Title: NEW JOURNAL OF PHYSICS
Version: Final published version. This is an open access article.

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