Anisotropic elastic interactions of a periodic dislocation array.
نویسندگان
چکیده
A method for calculating the anisotropic elastic energy of a dislocation dipole in a periodic cell is derived in which the infinite image summation is absolutely convergent. The core energy of a screw dislocation in Si, extracted from atomistic simulation, is shown to be manifestly system size invariant. Existence of special cell geometry where complete cancellation of elastic interactions occurs is demonstrated.
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عنوان ژورنال:
- Physical review letters
دوره 86 25 شماره
صفحات -
تاریخ انتشار 2001