Long-lived transient vacancy distribution in multilayers

Jean Marc Roussel, Pascal Bellon

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate the vacancy distribution in A/B phase-separating (111) multilayer at low temperature, about 0.25Tc. Three-dimensional kinetic Monte Carlo simulations with a vacancy-diffusion mechanism are performed. The atomic diffusion model accounts for the energy differences in formation ΔEf and in migration ΔEm of vacancies in the two terminal phases. We show that the migration term Δmf may lead to long lived transient vacancy distributions. The latter are interpreted by using a modified kinetic mean-field approach that accounts for some local dynamic correlations.

Original languageEnglish (US)
Pages (from-to)531-536
Number of pages6
JournalDefect and Diffusion Forum
Volume237-240
Issue numberPART 1
DOIs
StatePublished - 2005

Keywords

  • Interdiffusion
  • Metal
  • Monte Carlo simulations
  • Multilayers
  • Point defects

ASJC Scopus subject areas

  • Metals and Alloys

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