@article{2009MC200825,
title={First Principles Calculations of Vacancy Formation Energies in Σ13 Pyramidal Twin Grain Boundary of α-Al2O3},
author={Nobuaki Takahashi and Teruyasu Mizoguchi and Tetsuya Tohei and Kaoru Nakamura and Tsubasa Nakagawa and Naoya Shibata and Takahisa Yamamoto and Yuichi Ikuhara},
journal={MATERIALS TRANSACTIONS},
volume={50},
number={5},
pages={1019-1022},
year={2009},
doi={10.2320/matertrans.MC200825}
}