NMR technique for determining the depth of shallow nitrogen-vacancy centers in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2016-01-25 |
| Journal | Physical review. B./Physical review. B |
| Authors | Linh Pham, Stephen J. DeVience, Francesco Casola, Igor Lovchinsky, Alexander O. Sushkov |
| Institutions | Center for Astrophysics Harvard & Smithsonian, Harvard University |
| Citations | 147 |
Abstract
Section titled āAbstractāWe demonstrate a robust experimental method for determining the depth of\nindividual shallow Nitrogen-Vacancy (NV) centers in diamond with $\sim1$ nm\nuncertainty. We use a confocal microscope to observe single NV centers and\ndetect the proton nuclear magnetic resonance (NMR) signal produced by objective\nimmersion oil, which has well understood nuclear spin properties, on the\ndiamond surface. We determine the NV center depth by analyzing the NV NMR data\nusing a model that describes the interaction of a single NV center with the\nstatistically-polarized proton spin bath. We repeat this procedure for a large\nnumber of individual, shallow NV centers and compare the resulting NV depths to\nthe mean value expected from simulations of the ion implantation process used\nto create the NV centers, with reasonable agreement.\n