THE MODELING OF IRREGULAR INTERSTRATIFIED STRUCTURES OF SINGLE-CRYSTALS WITH CHEMICAL INHOMOGENEITY

The possibilities of modelling of irregular interstratified structures of single crystals with chemical inhomogeneity are discussed: the the oretical basis, the requirements to the Xray experiment, the accuracy and reproducibility of the diffraction data, the reliability of the su ggested models. The examples of the successful application of the appr oach to the study and description of the defect structures of single c rystals belonging to different structural types are considered. Three general types of irregular interstratified structures differing in the nature of chemical inhomogeneity as well as in the peculiarities of t heir diffraction patterns are distinguished.