Surface Effects on the Properties of Screw Dislocation in Nanofilms

Figure 1

An array of imaginary dislocations of the original screw dislocation in the thin film. The slip plane of the original screw dislocation is parallel to the surfaces of the thin film and the effects of the surfaces can be described by the array imaginary dislocations. is the thickness of nanofilms, and shows the position of slip plane.