STRESS-STRAIN DISTRIBUTION AROUND IMPLANTATION BOUNDARIES .1. ELASTIC MODELS IN THE CONTINUUM APPROXIMATION

Ion implantation in ferrimagnetic garnet epilayers containing bubbles suppresses hard bubbles and defines the propagation tracks for moving bubbles. It has been recognized that the existence of a strain/stress gradient in the vicinity of an implantation boundary is responsible for the formation of charged walls to which bubbles are attached. Two elastic models describing the stress/strain distribution around an implantation boundary are presented. They rely on densities of defects, infinitesimal dislocations and point defects in the continuum approximation.