@article{oai:repo.qst.go.jp:00048628,
 author = {Onoda, Shinobu and Tatsumi, Kazumasa and Haruyama, Moriyoshi and Teraji, Tokuyuki and Isoya, Junichi and Kada, Wataru and Ohshima, Takeshi and Hanaizumi, Osamu and 小野田 忍 and 立見 和雅 and 春山 盛善 and 大島 武},
 issue = {11},
 journal = {Physica Status Solidi A},
 month = {Sep},
 note = {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.},
 pages = {1700160-1--1700160-6},
 title = {Diffusion of Vacancies Created by High-Energy Heavy Ion Strike Into Diamond},
 volume = {214},
 year = {2017}
}