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arXiv · 1708.00561

Optically-pumped dynamic nuclear hyperpolarization in $^{13}$C enriched diamond

Anna J. Parker·Keunhong Jeong·Claudia E. Avalos·Birgit J. M. Hausmann·Christophoros C. Vassiliou·Alexander Pines·Jonathan P. King
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Abstract

We investigate nuclear spin hyperpolarization from nitrogen vacancy centers in isotopically enriched diamonds with $^{13}$C concentrations up to 100%. $^{13}$C enrichment leads to hyperfine structure of the nitrogen vacancy electron spin resonance spectrum and as a result the spectrum of dynamic nuclear polarization. We show that strongly-coupled $^{13}$C spins in the first shell surrounding a nitrogen vacancy center generate resolved hyperfine splittings, but do not act as an intermediary in the transfer of hyperpolarization of bulk nuclear spins. High levels of $^{13}$C enrichment are desirable to increase the efficiency of hyperpolarizaiton for magnetic resonance signal enhancement, imaging contrast agents, and as a platform for quantum sensing and many-body physics.

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Anna J. Parker, Keunhong Jeong, Claudia E. Avalos, Birgit J. M. Hausmann, Christophoros C. Vassiliou, Alexander Pines, Jonathan P. King. 2017-08-02. Optically-pumped dynamic nuclear hyperpolarization in $^{13}$C enriched diamond. https://doi.org/10.1103/physrevb.100.041203

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