X-ray Scattering on Stacking Faults in 123 Crystals Considering Local Changes of Distances between Atomic Layers

Spatial distribution of X-ray diffusion scattering intensity conditioned by additional CuO atomic layers [stacking faults (SF)] in the AB 2 Cu 3 O 7-x (123) structure has been studied within a cinematic approach. Natural laws of diffraction-pattern changes caused by increase of SF density and by local changes of interplanar distances of atomic layers in the vicinity of SFs were obtained. The X-ray method for determination of the SF density and local changes of interplanar distances is described.