Ratner M. Growth kinetics and optical manifestations of atomic and vacancy clusters

Object of study: atomic clusters in an expanding gas jet, vacancy clusters (pores) in irradiated crystals. Aim of study: establishing main regularities of the growth kinetics of atomic and vacancy clusters as well as their optical manifestations. Methods of study and equipment: up-to-date methods of theoretical physics, computer. Theoretical and practical results, novelty: At first the growth kinetics of atomic clusters in a gas jet was described with the simultaneous allowance for essential growth mechanisms and the growth kinetics of vacancy clusters in crystals was described with allowance for the nonuniformity of sinks for interstitials. At first the size distribution function and the size dependence of electronic spectra were found for atomic clusters in a broad region of sizes. Various growth modes were established for vacancy clusters as well as their controlling factor. Field of application: physics of nonequilibrium systems, basic physics for material science, nuclear physics, and physics of scintillators.