Multiple structures of(110)CSL twist boundaries in fcc metals

Özet

The geometry of different possible structures of (110) fcc twist boundaries is explored. Computer simulation of all possible low energy structures have been carried out for $\Sigma$=3 and $\Sigma$=9 twist boundaries using many-body potentials representing copper, silver and gold. Low symmetry structures are found to have lower energies than the high symmetry CSL structures.