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Optically pumped dynamic nuclear hyperpolarization in ~(13)C-enriched diamond

机译:光学泵送动态核超极化〜(13)C-ENCRICH钻石

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摘要

We investigate nuclear spin hyperpolarization from optically polarized nitrogen vacancy centers in isotopically enriched diamonds with C-13 concentrations up to 100%. C-13 enrichment leads to a nitrogen vacancy electron spin resonance with a complex hyperfine structure and dynamic nuclear polarization enhancement profile. We show that strongly coupled C-13 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 C-13 enrichment are desirable to increase the efficiency of hyperpolarization for magnetic resonance signal enhancement, imaging contrast agents, and as a platform for quantum sensing and many-body physics.
机译:我们在同位素富集的金刚石中调查核旋转超极化,其具有C-13浓度高达100%。 C-13富集导致氮空位电子旋转共振,具有复杂的高浓度结构和动态核偏振增强曲线。我们表明,围绕氮空缺中心的第一个壳中的强烈耦合的C-13旋转产生已解决的高血清分裂,但不充当散装核旋转的超极化转移中的中间体。高水平的C-13富集是希望提高磁共振信号增强,成像造影剂的超极化效率,以及作为量子传感和许多身体物理学的平台。

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