量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
Thank you very much for using our website. On the 11th of March 2019, this site was moved from our own network server to the JAIRO Cloud network server. If you previously bookmarked this site, that bookmark will no longer work. We would be grateful if you could bookmark the website again. Thank you very much for your understanding and cooperation.
A novel technique is proposed to measure how far vacancies diffuse from the
initial damaged region with sub-micrometer resolution. Vacancies created by
a single heavy ion with high energy are considered. The most important
feature of the single ion track is the quasi-one-dimensional vacancy
distribution with high volume density, which exceeds 1019 vacancies cm 3.
After annealing, the vacancies combine with nitrogen impurities to form
nitrogen vacancy (NV) centers. With increasing annealing temperature and
time, the distribution of NV centers becomes wider. Therefore, the vacancies
created by a single heavy ion are suitable to investigate vacancy diffusion.
The activation energy of vacancy migration in diamond is determined to be
2.12 eV, which is in reasonable agreement with reported values.
Diffusion of Vacancies Created by High-Energy Heavy Ion Strike Into Diamond
