A statistical correlation investigation for the role of surface spins to the spin relaxation of nitrogen vacancy centers
A statistical correlation investigation for the role of surface spins to the spin relaxation of nitrogen vacancy centers
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表面自旋对氮空位中心自旋弛豫作用的统计相关研究
DOI：
10.1063/1.4870938
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发表时间：
2014-04
期刊：
影响因子：
1.6
通讯作者：
Wang Guanzhong
中科院分区：
文献类型：
--
作者：
Song Xuerui;Zhang Jian;Feng Fupan;Wang Junfeng;Zhang Wenlong;Lou Liren;Zhu Wei;Wang Guanzhong
研究了纳米金刚石（ND）表面自旋对ND中氮空位（NV）中心的纵向弛豫时间（T-1）和横向弛豫时间（T-2）的影响。对T-1和T-2的实验结果提出了一个球形的核自旋模型，并对72个单核核自旋的实验结果进行了统计分析，粗略估计了表面自旋密度.对于所研究的核碎片，核碎片内部NV中心的T-1高度依赖于核碎片的表面自旋。然而，对于NV中心的T-2，本征贡献必须比表面自旋的贡献显著得多。换言之，ND中NV中心的T-1比T-2对表面自旋密度的变化更敏感。
We investigated the influence of spins on surface of nanodiamonds (NDs) to the longitudinal relaxation time (T-1) and transverse relaxation time (T-2) of nitrogen vacancy (NV) centers in ND. A spherical model of the NDs was suggested to account for the experimental results of T-1 and T-2, and the density of surface spins was roughly estimated based on the statistical analysis of experimental results of 72 NDs containing a single NV center. For NDs studied here, the T-1 of NV center inside is highly dependent to the surface spins of the NDs. However, for the T-2 of NV center, intrinsic contributions must be much pronounced than that by surface spins. In other words, T-1 of an NV center in NDs is more sensitive to the change of the surface spin density than T-2.
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影响因子：
4.1
作者：
A. Panich;A. Shames
通讯作者：
A. Panich;A. Shames
影响因子：
4.1
作者：
Gaebel, T.;Bradac, C.;Rabeau, J. R.
通讯作者：
Rabeau, J. R.
影响因子：
2.8
作者：
V. Osipov;A. Shames;A. Vul
通讯作者：
V. Osipov;A. Shames;A. Vul
影响因子：
8.6
作者：
M. Schaffry;E. Gauger;J. Morton;S. Benjamin
通讯作者：
M. Schaffry;E. Gauger;J. Morton;S. Benjamin
影响因子：
3.7
作者：
Zhi-Hui Wang;Susumu Takahashi
通讯作者：
Zhi-Hui Wang;Susumu Takahashi