In nanoscale metrology, dissipation of the sensor limits its performance. Strong dissipation has a negative impact on sensitivity, and sensor-target interaction even causes relaxation or dephasing of the latter. The weak dissipation of nitrogen-vacancy (NV) sensors in room temperature diamond enables detection of individual target nuclear spins, yet limits the spectral resolution of nuclear magnetic resonance (NMR) spectroscopy to several hundred Hertz, which typically prevents molecular recognition. Here, we use the NV intrinsic nuclear spin as a nonvolatile classical memory to store NMR information, while suppressing sensor back-action on the target using controlled decoupling of sensor, memory, and target. We demonstrate memory lifetimes up to 4 min and apply measurement and decoupling protocols, which exploit such memories efficiently. Our universal NV-based sensor device records single-spin NMR spectra with 13 Hz resolution at room temperature.Dissipation of the sensor is a limiting factor in metrology. Here, Pfender et al. suppress this effect employing the nuclear spin of an NV centre for robust intermediate storage of classical NMR information, allowing then to record single-spin NMR spectra with 13 Hz resolution at room temperature.

中文翻译：

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非易失性核自旋存储器可实现小型自旋簇的传感器无限纳米级光谱学。

在纳米计量中，传感器的耗散限制了其性能。强烈的耗散会对灵敏度产生负面影响，并且传感器与目标之间的相互作用甚至会导致传感器松弛或移相。室温金刚石中氮空位（NV）传感器的弱耗散性使得能够检测单个目标核自旋，但将核磁共振（NMR）光谱的光谱分辨率限制为数百赫兹，这通常会阻止分子识别。在这里，我们使用NV固有核自旋作为非易失性经典内存来存储NMR信息，同时通过使用传感器，内存和目标的受控去耦来抑制传感器对目标的反作用。我们演示了长达4分钟的内存寿命，并应用了测量和去耦协议，这些协议可以有效地利用此类内存。我们基于NV的通用传感器设备在室温下以13 Hz的分辨率记录单旋转NMR光谱。传感器的耗散是计量学的限制因素。在这里，Pfender等。NV中心的核自旋可稳固地存储经典NMR信息，从而抑制这种效应，然后允许在室温下以13 Hz的分辨率记录单轴NMR光谱。