@misc{oai:repo.qst.go.jp:00082152,
 author = {Shinei, Chikara and Miyakawa, Masashi and Shuya, Ishii and Seiichi, Saiki and Shinobu, Onoda and Watanabe, Kenji and Taniguchi, Takashi and Takeshi, Ohshima and Teraji, Tokuyuki and Shuya, Ishii and Seiichi, Saiki and Shinobu, Onoda and Takeshi, Ohshima},
 month = {Dec},
 note = {we consider the total amount of NV center in diamond as an indicator of amount of vacancy assuming all vacancies created in diamond were coupled with nitrogen during the consecutive annealing. In this study, we investigate the dependence of the negative-charge stability of NV centers, [NV-]/[NV0] ratio, on the percentage of vacancies to nitrogen, [NVT]/[P1] ratio. Our result indicates that the negative-charge stability is realized at [NVT]/[P1] < 0.2 except for the case in which [NV-] is compatible to residual [B]., 3rd IFQMS},
 title = {Optimal amount of vacancy in diamond for negative-charge stability of NV  centers at various nitrogen concentration},
 year = {2020}
}