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Danani, A, Ferrando, R, Scalas, E and Torri, M (1998) Collective surface diffusion on a triangular lattice in presence of ordered phases. Surface Science, 402-4. pp. 281-285. ISSN 0039-6028
Full text not available from this repository.Abstract
Diffusion is studied in a two-dimensional gas of triangular symmetry with repulsive interactions. The collective diffusion coefficient, Dc, is calculated as the ratio of the average jump rate and the zero-wave-vector static structure factor (Darken approximation). The dependence of Dc on coverage, θ, is studied in both the disordered and ordered regions of the phase diagram. It is shown that, around the coverages of the perfect ordered phases (θ=1/3 and 2/3), Dc changes of orders of magnitude in tiny θ ranges.
| Item Type: | Article |
|---|---|
| Schools and Departments: | School of Mathematical and Physical Sciences > Mathematics |
| Subjects: | Q Science > QA Mathematics > QA0273 Probabilities. Mathematical statistics Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics |
| Depositing User: | Enrico Scalas |
| Date Deposited: | 02 Oct 2014 13:13 |
| Last Modified: | 02 Oct 2014 13:13 |
| URI: | http://srodev.sussex.ac.uk/id/eprint/50315 |