Electron spin resonance spectroscopy of small ensemble paramagnetic spins using a single nitrogen-vacancy center in diamond
Electron spin resonance spectroscopy of small ensemble paramagnetic spins using a single nitrogen-vacancy center in diamond
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DOI：
10.1063/1.4963717
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发表时间：
2015-07
影响因子：
3.2
通讯作者：
C. Abeywardana;V. Stepanov;F. Cho;Susumu Takahashi
中科院分区：
文献类型：
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作者：
C. Abeywardana;V. Stepanov;F. Cho;Susumu Takahashi
金刚石中的氮空位（NV）中心是一种很有前途的纳米磁传感器。在这里，我们报告的电子自旋共振（ESR）光谱使用一个单一的NV中心的金刚石。首先，使用230 GHz的ESR谱仪，我们进行了系综ESR的Ib型样品晶体，并确定了一个取代的单一氮杂质作为一个主要的顺磁中心的样品晶体。然后，我们进行了自由感应衰减和自旋回波测量单个NV中心的静态和动态性质的研究纳米浴自旋NV中心周围。我们还测量了ESR谱浴自旋使用双电子-电子共振光谱与单NV中心。基于NV的ESR测量的频谱分析确定所检测到的自旋是氮杂质自旋。实验还进行了与其他几个单一的NV中心在金刚石样品，并证明了浴自旋的性质是独特的NV中心指示，在金刚石样品中。
A nitrogen-vacancy (NV) center in diamond is a promising sensor for nanoscale magnetic sensing. Here, we report on electron spin resonance (ESR) spectroscopy using a single NV center in diamond. First, using a 230 GHz ESR spectrometer, we performed ensemble ESR of a type-Ib sample crystal and identified a substitutional single nitrogen impurity as a major paramagnetic center in the sample crystal. Then, we carried out free-induction decay and spin echo measurements of the single NV center to study static and dynamic properties of nanoscale bath spins surrounding the NV center. We also measured ESR spectrum of the bath spins using double electron-electron resonance spectroscopy with the single NV center. The spectrum analysis of the NV-based ESR measurement identified that the detected spins are the nitrogen impurity spins. The experiment was also performed with several other single NV centers in the diamond sample and demonstrated that the properties of the bath spins are unique to the NV centers indicati...