Controlled Surface Modification to Revive Shallow NV(–) Centers

[Image: see text] Near-surface negatively charged nitrogen vacancy (NV) centers hold excellent promise for nanoscale magnetic imaging and quantum sensing. However, they often experience charge-state instabilities, leading to strongly reduced fluorescence and NV coherence time, which negatively impac...

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Autores principales: Neethirajan, Jeffrey Neethi, Hache, Toni, Paone, Domenico, Pinto, Dinesh, Denisenko, Andrej, Stöhr, Rainer, Udvarhelyi, Péter, Pershin, Anton, Gali, Adam, Wrachtrup, Joerg, Kern, Klaus, Singha, Aparajita
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10103335/
https://www.ncbi.nlm.nih.gov/pubmed/36927005
http://dx.doi.org/10.1021/acs.nanolett.2c04733
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author Neethirajan, Jeffrey Neethi
Hache, Toni
Paone, Domenico
Pinto, Dinesh
Denisenko, Andrej
Stöhr, Rainer
Udvarhelyi, Péter
Pershin, Anton
Gali, Adam
Wrachtrup, Joerg
Kern, Klaus
Singha, Aparajita
author_facet Neethirajan, Jeffrey Neethi
Hache, Toni
Paone, Domenico
Pinto, Dinesh
Denisenko, Andrej
Stöhr, Rainer
Udvarhelyi, Péter
Pershin, Anton
Gali, Adam
Wrachtrup, Joerg
Kern, Klaus
Singha, Aparajita
author_sort Neethirajan, Jeffrey Neethi
collection PubMed
description [Image: see text] Near-surface negatively charged nitrogen vacancy (NV) centers hold excellent promise for nanoscale magnetic imaging and quantum sensing. However, they often experience charge-state instabilities, leading to strongly reduced fluorescence and NV coherence time, which negatively impact magnetic imaging sensitivity. This occurs even more severely at 4 K and ultrahigh vacuum (UHV, p = 2 × 10(–10) mbar). We demonstrate that in situ adsorption of H(2)O on the diamond surface allows the partial recovery of the shallow NV sensors. Combining these with band-bending calculations, we conclude that controlled surface treatments are essential for implementing NV-based quantum sensing protocols under cryogenic UHV conditions.
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spelling pubmed-101033352023-04-15 Controlled Surface Modification to Revive Shallow NV(–) Centers Neethirajan, Jeffrey Neethi Hache, Toni Paone, Domenico Pinto, Dinesh Denisenko, Andrej Stöhr, Rainer Udvarhelyi, Péter Pershin, Anton Gali, Adam Wrachtrup, Joerg Kern, Klaus Singha, Aparajita Nano Lett [Image: see text] Near-surface negatively charged nitrogen vacancy (NV) centers hold excellent promise for nanoscale magnetic imaging and quantum sensing. However, they often experience charge-state instabilities, leading to strongly reduced fluorescence and NV coherence time, which negatively impact magnetic imaging sensitivity. This occurs even more severely at 4 K and ultrahigh vacuum (UHV, p = 2 × 10(–10) mbar). We demonstrate that in situ adsorption of H(2)O on the diamond surface allows the partial recovery of the shallow NV sensors. Combining these with band-bending calculations, we conclude that controlled surface treatments are essential for implementing NV-based quantum sensing protocols under cryogenic UHV conditions. American Chemical Society 2023-03-16 /pmc/articles/PMC10103335/ /pubmed/36927005 http://dx.doi.org/10.1021/acs.nanolett.2c04733 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Neethirajan, Jeffrey Neethi
Hache, Toni
Paone, Domenico
Pinto, Dinesh
Denisenko, Andrej
Stöhr, Rainer
Udvarhelyi, Péter
Pershin, Anton
Gali, Adam
Wrachtrup, Joerg
Kern, Klaus
Singha, Aparajita
Controlled Surface Modification to Revive Shallow NV(–) Centers
title Controlled Surface Modification to Revive Shallow NV(–) Centers
title_full Controlled Surface Modification to Revive Shallow NV(–) Centers
title_fullStr Controlled Surface Modification to Revive Shallow NV(–) Centers
title_full_unstemmed Controlled Surface Modification to Revive Shallow NV(–) Centers
title_short Controlled Surface Modification to Revive Shallow NV(–) Centers
title_sort controlled surface modification to revive shallow nv(–) centers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10103335/
https://www.ncbi.nlm.nih.gov/pubmed/36927005
http://dx.doi.org/10.1021/acs.nanolett.2c04733
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