Modelization of surface diffusion of a molecular dimer

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/2516

dc.contributor	Universitat Politècnica de Catalunya. Departament de Física Aplicada
dc.contributor	Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
dc.contributor.author	Romero, A. H.
dc.contributor.author	Lacasta Palacio, Ana María
dc.contributor.author	Sancho, Jose Maria
dc.date	2004
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.citation	1063-651X
dc.identifier.citation	10.1103/PhysRevE.69.051105
dc.identifier.uri	http://hdl.handle.net/2117/2516
dc.language.iso	eng
dc.publisher	American Physical Society
dc.relation	http://link.aps.org/doi/10.1103/PhysRevE.69.051105
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics
dc.subject	Àrees temàtiques de la UPC::Física
dc.subject	Diffusion
dc.subject	Langevin equations
dc.subject	Dimers
dc.subject	Nonlinear systems
dc.subject	Nonlinear dynamics
dc.subject	Dimers
dc.subject	Diffusion
dc.subject	Periodic potentials
dc.subject	Sistemes no lineals
dc.subject	Difusió
dc.title	Modelization of surface diffusion of a molecular dimer
dc.type	info:eu-repo/semantics/article
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.description.abstract	Peer Reviewed

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