亚埃分辨率的单个核自旋三维定域谱
Three-dimensional localization spectroscopy of individual nuclear spins with sub-Angstrom resolution
摘要：
我们报告精确的本地化光谱实验的个别13 C核自旋附近的中央电子传感器自旋在金刚石芯片。通过检测快速切换的外部磁场中的核自由旋进信号，我们以亚埃分辨率和超过10埃的距离检索核自旋的三维空间坐标。我们进一步表明，费米接触的贡献，可以通过测量核g因子增强的约束。所提出的方法将是有用的映射的原子尺度结构的单分子，纳米级核磁共振光谱学的一个雄心勃勃的重要目标。
英文摘要：
We report on precise localization spectroscopy experiments of individual 13C nuclear spins near a central electronic sensor spin in a diamond chip. By detecting the nuclear free precession signals in rapidly switchable external magnetic fields, we retrieve the three-dimensional spatial coordinates of the nuclear spins with sub-Angstrom resolution and for distances beyond 10 Angstroms. We further show that the Fermi contact contribution can be constrained by measuring the nuclear g-factor enhancement. The presented method will be useful for mapping the atomic-scale structure of single molecules, an ambitious yet important goal of nanoscale nuclear magnetic resonance spectroscopy.
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