Spin properties of very shallow nitrogen vacancy defects in diamond
Name
Ofori-Okai-2012-Spin properties of very shallow nitrogen vacancy defects in diamond.pdf
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1.06 MB
Format
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Checksum (MD5)
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Author(s)
Ofori-Okai, Benjamin Kwasi
Tao, Ye, Ph. D. Massachusetts Institute of Technology
Pezzagna, S.
Chang, K.
Loretz, M.
Schirhagl, R.
Moores, B. A.
Groot-Berning, K.
Meijer, J.
Degen, Christian
Date Issued
August 2012
Journal
Physical Review B
Publisher
American Physical Society
Citation
Ofori-Okai, B. et al. “Spin Properties of Very Shallow Nitrogen Vacancy Defects in Diamond.” Physical Review B 86.8 (2012). ©2012 American Physical Society
Version
Final published version
Abstract
We investigate spin and optical properties of individual nitrogen vacancy centers located within 1–10 nm from the diamond surface. We observe stable defects with a characteristic optically detected magnetic-resonance spectrum down to the lowest depth. We also find a small but systematic spectral broadening for defects shallower than about 2 nm. This broadening is consistent with the presence of a surface paramagnetic impurity layer [ Tisler et al. ACS Nano 3 1959 (2009)] largely decoupled by motional averaging. The observation of stable and well-behaved defects very close to the surface is critical for single-spin sensors and devices requiring nanometer proximity to the target.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.86.081406
