Journal
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
Volume 213, Issue 11, Pages 2969-2973Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201600158
Keywords
molecular dynamics; Monte Carlo simulations; nuclear fusion; nuclear materials; radiation damage
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The influence of surfaces on the evolution of damage of irradiated Fe is studied using object kinetic Monte Carlo with input from molecular dynamics simulations and ab initio calculations. Two effects are analysed: the influence of traps and the initial distribution of damage in the cascade. These simulations show that for a trap concentration of around 100 appm, there are no significant differences between defect concentrations in bulk and thin films. However, the initial distribution of defects plays an important role not only on total defect concentration but also on defect type, for the model used in this study. Damage produced by a 100 keV Fe ion impinging a Fe thin film. Blue (dark) spheres are self-interstitials, red (light) spheres are vacancies. (C) 2016 The Authors/Employers. Phys. Status Solidi A published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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