Scanning magnetic field microscope with a diamond single-spin sensor
Scanning magnetic field microscope with a diamond single-spin sensor
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DOI：
10.1063/1.2943282
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发表时间：
2008-06-16
影响因子：
4
通讯作者：
Degen, C. L.
中科院分区：
文献类型：
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作者：
Degen, C. L.
我们描述了一种扫描装置，其中单个自旋被用作超灵敏的纳米级磁场传感器。当这种“探针自旋”时，我们考虑附着在扫描装置尖端的金刚石纳米晶体中的单个氮空位缺陷中心。探针自旋观察到的局域场变化是通过光学监测其电子顺磁共振跃迁来检测的。室温扫描装置可用于进行纳米级磁共振成像和光谱学，以及磁性纳米结构的表征，直至单原子水平。
We describe a scanning device where a single spin is used as an ultrasensitive, nanoscale magnetic field sensor. As this "probe spin" we consider a single nitrogen-vacancy defect center in a diamond nanocrystal, attached to the tip of the scanning device. Changes in the local field seen by the probe spin are detected by optically monitoring its electron paramagnetic resonance transition. The room-temperature scanning device may be useful for performing nanoscale magnetic resonance imaging and spectroscopy, and for the characterization of magnetic nanostructures down to the single atom level.