SYMPOSIA PAPER Published: 01 January 1990

The Development of Periodical Spatial Structures in Crystals under Irradiation


Due to the elastic interaction of point defects created by external irradiation, the homogeneous distribution of defects is shown to become unstable at defect concentration larger than certain threshold value and the superlattice of defect density appears in the crystal. The parameters of the superlattice are determined by kinetic characteristics of the system (diffusion coefficient, lifetime of defects, and so on). The created superlattice is an example of the dissipative structure that exists far from equilibrium. The condition of development, the stability, the main parameters of superlattice are analyzed for three cases when a crystal contains (1) vacancies, (2) vacancies and interstitials, and (3) vacancies, interstitials and traps for defects. The calculations show that for realistic parameters of crystals and realistic conditions of irradiation the most preferable conditions for the creation of superlattice occur in the third case.

Author Information

Sugakov, VI
Institute for Nuclear Research, Academy of Sciences of the Ukrainian SSR, Kiev, Union of Soviet Socialist Republics
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E10
Pages: 510–522
DOI: 10.1520/STP24665S
ISBN-EB: 978-0-8031-5112-3
ISBN-13: 978-0-8031-1266-7