Sensitive magnetic control of ensemble nuclear spin hyperpolarization in diamond

TitleSensitive magnetic control of ensemble nuclear spin hyperpolarization in diamond
Publication TypeJournal Article
Year of Publication2013
AuthorsWang H.J, Shin C.S, Avalos C.E, Seltzer S.J, Budker D., Pines A, Bajaj V.S
JournalNature Communications
Volume4
Start Page1940
Pagination1940
Date PublishedJune 5, 2013
ISBN Number2041-1723 (Linking)
Accession Number23736952
Abstract

Dynamic nuclear polarization, which transfers the spin polarization of electrons to nuclei, is routinely applied to enhance the sensitivity of nuclear magnetic resonance. This method is particularly useful when spin hyperpolarization can be produced and controlled optically or electrically. Here we show complete polarization of nuclei located near optically polarized nitrogen-vacancy centres in diamond. Close to the ground-state level anti-crossing condition of the nitrogen-vacancy electron spins, (13)C nuclei in the first shell are polarized in a pattern that depends sensitively upon the magnetic field. Based on the anisotropy of the hyperfine coupling and of the optical polarization mechanism, we predict and observe a reversal of the nuclear spin polarization with only a few millitesla change in the magnetic field. This method of magnetic control of high nuclear polarization at room temperature can be applied in sensitivity enhanced nuclear magnetic resonance of bulk nuclei, nuclear-based spintronics, and quantum computation in diamond.

URLhttp://www.ncbi.nlm.nih.gov/pubmed/23736952
DOI10.1038/ncomms2930
Short TitleSensitive magnetic control of ensemble nuclear spin hyperpolarization in diamond
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