The migration of interstitialcy-type self-interstitials was considered to involve the repeated breaking of a bond and the formation of a new bond. Because 2 bonds had to be broken and formed simultaneously in the case of a 2-bond type of migration, a 1-bond type of migration was considered to be more likely to occur. On this basis it was concluded that, if a split-<100> self-interstitial was the more stable, it migrated via a bond-centered self-interstitial. If a bond-centered self-interstitial was the more stable, it migrated via a split-<100> self-interstitial.

M.Yoshida, R.Tsuruno, Y.Kamiura, M.Takahashi, H.Tomokage: Japanese Journal of Applied Physics - 1, 1997, 36[12A], 7156-7