Determination of local defect density in diamond by double electron-electron resonance
Determination of local defect density in diamond by double electron-electron resonance
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DOI：
10.1103/physrevb.104.094307
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发表时间：
2021-09-24
影响因子：
3.7
通讯作者：
Budker, Dmitry
中科院分区：
文献类型：
--
作者：
Li, Shang;Zheng, Huijie;Budker, Dmitry
金刚石中的磁性杂质影响弛豫特性，从而限制了基于氮空位色心的磁、电、应变和温度传感器的灵敏度。金刚石样品中的杂质浓度可能会表现出显着的空间变化，阻碍弛豫路径的定量分析。在这里，我们提出了一个本地测量技术，可用于确定各种缺陷的浓度，通过利用双电子-电子共振。这种方法将有助于提高对自旋弛豫物理基础的理解，指导金刚石样品的开发，并提供优化传感的协议。
Magnetic impurities in diamond influence the relaxation properties and thus limit the sensitivity of magnetic, electric, strain, and temperature sensors based on nitrogen-vacancy color centers. Diamond samples may exhibit significant spatial variations in the impurity concentrations hindering the quantitative analysis of relaxation pathways. Here, we present a local measurement technique which can be used to determine the concentration of various species of defects by utilizing double electron-electron resonance. This method will help to improve the understanding of the physics underlying spin relaxation and guide the development of diamond samples, as well as offering protocols for optimized sensing.