Toward Optimized Surface δ-Profiles of Nitrogen-Vacancy Centers Activated by Helium Irradiation in Diamond.

@article{Oliveira2016TowardOS,
  title={Toward Optimized Surface δ-Profiles of Nitrogen-Vacancy Centers Activated by Helium Irradiation in Diamond.},
  author={Felipe F{\'a}varo de Oliveira and Seyed Ali Momenzadeh and Denis Antonov and Jochen Scharpf and Christian Osterkamp and Boris Naydenov and Fedor Jelezko and Andrej Denisenko and Joerg Wrachtrup},
  journal={Nano letters},
  year={2016},
  volume={16 4},
  pages={2228-33}
}
The negatively charged nitrogen-vacancy (NV) center in diamond has been shown recently as an excellent sensor for external spins. Nevertheless, their optimum engineering in the near-surface region still requires quantitative knowledge in regard to their activation by vacancy capture during thermal annealing. To this aim, we report on the depth profiles of near-surface helium-induced NV centers (and related helium defects) by step-etching with nanometer resolution. This provides insights into… CONTINUE READING
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