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https://hdl.handle.net/2445/18764| Title: | Modelization of surface diffusion of a molecular dimer |
| Author: | Romero, A. H. Lacasta Palacio, Ana María Sancho, José M. |
| Keywords: | Física estadística Termodinàmica Sistemes dinàmics diferenciables Matèria condensada Statistical physics Thermodynamics Differentiable dynamical systems Condensed matter |
| Issue Date: | 2004 |
| Publisher: | The American Physical Society |
| Abstract: | A simple model for a dimer molecular diffusion on a crystalline surface, as a function of temperature, is presented. The dimer is formed by two particles coupled by a quadratic potential. The dimer diffusion is modeled by an overdamped Langevin equation in the presence of a two-dimensional periodic potential. Numerical simulation¿s results exhibit some dynamical properties observed, for example, in Si2 diffusion on a silicon [100] surface. They can be used to predict the value of the effective friction parameter. Comparison between our model and experimental measurements is presented. |
| Note: | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.69.051105 |
| It is part of: | Physical Review E, 2004, vol. 69, p. 051105(1)-051105(4) |
| URI: | https://hdl.handle.net/2445/18764 |
| Related resource: | http://dx.doi.org/10.1103/PhysRevE.69.051105 |
| ISSN: | 1063-651X |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 517455.pdf | 162.76 kB | Adobe PDF | View/Open |
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