Fig. 103: Magnification of a topograph showing a region of the sample from Fig. 99, but close to the sample edge. It is seen that the dislocation pairs in the layer disturb the Moiré pattern locally but globally do not create additional fringes (the number of fringes between A and B is the same at the lower and upper part of the figure). The distance between the Moiré fringes is about 40 µm, which leads to relative deformations of about 10-5.