Diffusion and density fluctuations of atoms adsorbed on solid surfaces
The evolution of lattice gas density fluctuations is studied. Using the approximation of the local statistical equilibrium, an equation of motion for density fluctuation is derived, which, in general, differs from the ordinary diffusion equation. The correlation function of Langevin source of densit...
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| Veröffentlicht in: | Surface science 1980-01, Vol.91 (2), p.694-706 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The evolution of lattice gas density fluctuations is studied. Using the approximation of the local statistical equilibrium, an equation of motion for density fluctuation is derived, which, in general, differs from the ordinary diffusion equation. The correlation function of Langevin source of density fluctuations is calculated as well. |
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| ISSN: | 0039-6028 1879-2758 |
| DOI: | 10.1016/0039-6028(80)90360-X |