Impurities migration in two-dimensional hexagonal structure with extensive distortions

Abstract

Regularities of impurity atoms migration in two­dimensional structure with hexagonal symmetry are considered. On conditions that extensive distortions exist the kinetics equations of migrating atoms’ jumps for version of migration subjects’ Hollow­positioning are written and characteristics of these equations solutions are studied. The change of the main moments of functions for particles distribution in the course of evolution of initial distribution is found. There is shown that linear irregularity of structure parameters, which is caused by non­uniform heating, saves a form of dependence of shi fts mean square on time, which is characteristic for diffusive process. However, distortion of the defor mation nature can significantly modify the called dependence by means of considered process approaching to properties of abnormal diffusion. Both types of influence can be considered as means of restructuring of impurity atoms’ distributions and therefore as corresponding change of object characteristics.