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arXiv · 1312.2394

Nanoscale nuclear magnetic resonance with a 1.9-nm-deep nitrogen-vacancy sensor

M. Loretz·S. Pezzagna·J. Meijer·C. L. Degen
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Abstract

We present nanoscale NMR measurements performed with nitrogen-vacancy (NV) centers located down to about 2 nm from the diamond surface. NV centers were created by shallow ion implantation followed by a slow, nanometer-by-nanometer removal of diamond material using oxidative etching in air. The close proximity of NV centers to the surface yielded large 1H NMR signals of up to 3.4 uT-rms, corresponding to ~330 statistically polarized or ~10 fully polarized proton spins in a ~(1.8 nm)^3 detection volume.

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M. Loretz, S. Pezzagna, J. Meijer, C. L. Degen. 2014-01-22. Nanoscale nuclear magnetic resonance with a 1.9-nm-deep nitrogen-vacancy sensor. https://doi.org/10.1063/1.4862749

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