Figure 1: Two-dimensional schematic of a (1 1 19) surface.

The terrace edge (TE) and step corner (SC) atoms are marked. The width of the terraces is 10 atomic rows. Orientation of the terraces is (001). The (1 1 19) and (19 19 ) directions correspond to the z and y simulation box axes. The y direction is also the direction of the applied strain.