Abstract
A nitridation process of a diamond surface with nitrogen radical exposure far from the radio-frequency plasma for the stabilization of a negatively charged nitrogen-vacancy (NV%) centers near the surface is presented. At a nitrogen coverage of as high as 0.9 monolayers, high average Rabi contrasts of 0.40 + 0.06 and 0.46 + 0.03 have been obtained for single NV% centers formed by shallow nitrogen implantation with acceleration voltages of 1 and 2 keV, respectively. This indicates that nitrogen termination by a radical exposure process produces an electric charge state suitable for single NV% centers near the surface compared with the states obtained for alternatively terminated surfaces.
Original language | English |
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Article number | 055503 |
Journal | Applied Physics Express |
Volume | 10 |
Issue number | 5 |
DOIs | |
Publication status | Published - May 2017 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)