Sensing single remote nuclear spins.
Sensing single remote nuclear spins.
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DOI：
10.1038/nnano.2012.152
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发表时间：
2012-04
影响因子：
38.3
通讯作者：
N. Zhao;J. Honert;B. Schmid;M. Klas;J. Isoya;M. Markham;D. Twitchen;F. Jelezko;Renbao Liu
中科院分区：
文献类型：
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作者：
N. Zhao;J. Honert;B. Schmid;M. Klas;J. Isoya;M. Markham;D. Twitchen;F. Jelezko;Renbao Liu
探测单个核自旋将对从基础科学到量子信息技术的各个领域都很有用。然而，尽管基于金刚石缺陷的感测和其他方法已经显示出高灵敏度，但它们还不能检测单个核自旋，并且基于缺陷的技术还需要强的缺陷-自旋耦合。在这里，我们提出了检测和识别的单个和remote 13 C核自旋嵌入在核自旋浴周围的一个氮空位中心的单电子自旋在金刚石。我们能够放大和检测的弱磁场噪声（10 nT），从一个单一的核自旋位于距离中心约3 nm，使用动态解耦控制，，并实现了可检测的超精细耦合强度弱至10300 Hz。我们还证实了耦合的量子性质，并测量了自旋缺陷距离和核场的矢量分量。该技术标志着在单分子中成像、检测和控制核自旋的一步。
The detection of single nuclear spins would be useful for fields ranging from basic science to quantum information technology. However, although sensing based on diamond defects,and other methods have shown high sensitivity,,, they have not been capable of detecting single nuclear spins, and defect-based techniques further require strong defect–spin coupling,. Here, we present the detection and identification of single and remote13C nuclear spins embedded in nuclear spin baths surrounding a single electron spin of a nitrogen-vacancy centre in diamond. We are able to amplify and detect the weak magnetic field noise (∼10 nT) from a single nuclear spin located ∼3 nm from the centre using dynamical decoupling control,,,,, and achieve a detectable hyperfine coupling strength as weak as ∼300 Hz. We also confirm the quantum nature of the coupling, and measure the spin-defect distance and the vector components of the nuclear field. The technique marks a step towards imaging, detecting and controlling nuclear spins in single molecules.