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Modelization of surface diffusion of a molecular dimer
dc.contributor.author | Romero, A. H. |
dc.contributor.author | Lacasta Palacio, Ana María |
dc.contributor.author | Sancho, Jose Maria |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física Aplicada |
dc.date.accessioned | 2009-01-21T10:49:31Z |
dc.date.available | 2009-01-21T10:49:31Z |
dc.date.created | 2004 |
dc.date.issued | 2004-05-20 |
dc.identifier.citation | Romero, A.H; Lacasta, A.M; Sancho, J.M. Modelization of surface diffusion of a molecular dimer. "Physical Review E". vol. 69, núm. 5, p. 051105 |
dc.identifier.issn | 1063-651X |
dc.identifier.uri | http://hdl.handle.net/2117/2516 |
dc.description.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. |
dc.format.extent | 4 |
dc.language.iso | eng |
dc.publisher | American Physical Society |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Diffusion |
dc.subject.lcsh | Langevin equations |
dc.subject.lcsh | Dimers |
dc.subject.lcsh | Nonlinear systems |
dc.subject.other | Nonlinear dynamics |
dc.subject.other | Dimers |
dc.subject.other | Diffusion |
dc.subject.other | Periodic potentials |
dc.title | Modelization of surface diffusion of a molecular dimer |
dc.type | Article |
dc.subject.lemac | Sistemes no lineals |
dc.subject.lemac | Difusió |
dc.contributor.group | Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri |
dc.identifier.doi | 10.1103/PhysRevE.69.051105 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://link.aps.org/doi/10.1103/PhysRevE.69.051105 |
dc.rights.access | Open Access |
local.personalitzacitacio | true |
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