TY - JOUR
T1 - Charge state dynamics and optically detected electron spin resonance contrast of shallow nitrogen-vacancy centers in diamond
AU - Yuan, Zhiyang
AU - Fitzpatrick, Mattias
AU - Rodgers, Lila V.H.
AU - Sangtawesin, Sorawis
AU - Srinivasan, Srikanth
AU - De Leon, Nathalie P.
N1 - Publisher Copyright:
© 2020 authors. Published by the American Physical Society.
PY - 2020/8
Y1 - 2020/8
N2 - Nitrogen-vacancy (NV) centers in diamond can be used for nanoscale sensing with atomic resolution and sensitivity; however, it has been observed that their properties degrade as they approach the diamond surface. Here we report that in addition to degraded spin coherence, NV centers within nanometers of the surface can also exhibit decreased fluorescence contrast for optically detected electron spin resonance (OD-ESR). We demonstrate that this decreased OD-ESR contrast arises from charge state dynamics of the NV center, and that it is strongly surface-dependent, indicating that surface engineering will be critical for nanoscale sensing applications based on color centers in diamond.
AB - Nitrogen-vacancy (NV) centers in diamond can be used for nanoscale sensing with atomic resolution and sensitivity; however, it has been observed that their properties degrade as they approach the diamond surface. Here we report that in addition to degraded spin coherence, NV centers within nanometers of the surface can also exhibit decreased fluorescence contrast for optically detected electron spin resonance (OD-ESR). We demonstrate that this decreased OD-ESR contrast arises from charge state dynamics of the NV center, and that it is strongly surface-dependent, indicating that surface engineering will be critical for nanoscale sensing applications based on color centers in diamond.
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U2 - 10.1103/PhysRevResearch.2.033263
DO - 10.1103/PhysRevResearch.2.033263
M3 - Article
AN - SCOPUS:85112367888
SN - 2643-1564
VL - 2
JO - Physical Review Research
JF - Physical Review Research
IS - 3
M1 - 033263
ER -