Optical tuning of the diamond Fermi level measured by correlated scanning probe microscopy and quantum defect spectroscopy
Optical tuning of the diamond Fermi level measured by correlated scanning probe microscopy and quantum defect spectroscopy
复制标题
通过相关扫描探针显微镜和量子缺陷光谱测量金刚石费米能级的光学调谐
DOI:
10.1103/physrevmaterials.8.036201
复制
发表时间:
2024
影响因子:
3.4
通讯作者:
Fu, Kai-Mei C.
中科院分区:
文献类型:
--
作者:
Pederson, Christian;Giridharagopal, Rajiv;Zhao, Fang;Dunham, Scott T.;Raitses, Yevgeny;Ginger, David S.;Fu, Kai-Mei C.
Quantum technologies based on quantum point defects in crystals require control over the defect charge state. Here we tune the charge state of shallow nitrogen-vacancy and silicon-vacancy centers by locally oxidizing a hydrogenated surface with moderate optical excitation and simultaneous spectral monitoring. The loss of conductivity and change in work function due to oxidation are measured in atmosphere using conductive atomic force microscopy and Kelvin probe force microscopy (KPFM). We correlate these scanning probe measurements with optical spectroscopy of the nitrogen-vacancy and silicon-vacancy centers created via implantation 15–25 nm beneath the diamond surface and annealing. The observed charge state of the defects as a function of optical exposure demonstrates that laser oxidation provides a way to precisely tune the Fermi level over a range of at least 2.00 eV. We also observe a significantly larger oxidation rate for implanted surfaces compared to unimplanted surfaces under ambient conditions. Combined with knowledge of the electron affinity of a surface, these results suggest KPFM is a powerful, high-spatial-resolution technique to advance surface Fermi level engineering for charge stabilization of quantum defects.
登录
查看更多内容
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
B. Rezek;C. Nebel
通讯作者:
C. Nebel
影响因子:
56.9
作者:
Rose, Brendon C.;Huang, Ding;de Leon, Nathalie P.
通讯作者:
de Leon, Nathalie P.
影响因子:
4.1
作者:
V. Ralchenko;K. Korotushenko;A. Smolin;E. N. Loubnin
通讯作者:
V. Ralchenko;K. Korotushenko;A. Smolin;E. N. Loubnin
影响因子:
56.9
作者:
V. Gates;.. M. L. Ludwig-M.-L.-Ludwig-2273875465;J. A. Hartsuck;T. A. Steitz;H. Muirhead;J. C. Coppola;G. N. Reeke
通讯作者:
V. Gates;.. M. L. Ludwig-M.-L.-Ludwig-2273875465;J. A. Hartsuck;T. A. Steitz;H. Muirhead;J. C. Coppola;G. N. Reeke
影响因子:
3.2
作者:
Orwa, J. O.;Santori, C.;Prawer, S.
通讯作者:
Prawer, S.