By using a Tersoff-type empirical potential energy function, the free energy of formation of {113}-type stacking faults was calculated - at various temperatures - as a function of the stacking-fault rod length and width. It was found that a particular tetrahedral-tetrahedral dimer exhibited the lowest free energy of formation at 0K, and that this type of stacking fault formed an assembly of such dimers. The free energy of formation per interstitial in a ribbon fault decreased with ribbon width or length, and increased with temperature.

N.Cuendet, T.Halicioglu, W.A.Tiller: Applied Physics Letters, 1996, 68[1], 19-21