Monte-Carlo analysis of tracer diffusion mechanisms in YBa2Cu3O6+c
Institute of Theoretical Physics, University of Wrocław, pl. Maxa Borna 9,
50-204 Wrocław, Poland
2 SUPRAS, Institut de Physique B5, Université de Liège, 4000 Liège, Belgium
Published online: 15 October 1999
A method for estimating, via the Monte-Carlo simulation, the most often realized diffusion mechanisms in 2D ordered structures is presented. Taking as an example the diffusion of oxygen ions in high temperature superconductor we propose several diffusion mechanisms and show to what extent they depend on the temperature and concentration of the diffusing particles. Our results are compared with the ones proposed earlier on the basis of energy arguments. We find also additional trajectories, different from those earlier reported in that system.
PACS: 02.70.Lq – Monte-Carlo and statistical methods / 66.10.Cb – Diffusion and thermal diffusion / 74.72.Bk – Y-based cuprates
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999