Show simple item record Bonfanti, Matteo Somers, Mark F. Díaz, Cristina Busnengo, Heriberto Fabio Kroes, Geert Jan 2016-06-01T12:45:15Z 2013-06
dc.identifier.citation Bonfanti, Matteo; Somers, Mark F.; Díaz, Cristina; Busnengo, Heriberto Fabio; Kroes, Geert Jan; 7D Quantum Dynamicsof H2 scattering form Cu(111): the accuracy of the phonon sudden approximation; Oldenbourg Verlag; Zeitschrift Für Physikalische Chemie; 227; 9-11; 6-2013; 1397-1420
dc.identifier.issn 0942-9352
dc.description.abstract The correct prediction of elementary processes occurring when H 2 scatters from a metal surface is one of the main challenges of surface science. In the field, the scattering of H 2 from Cu(111) has been considered a prototype system for activated dissociative chemisorption. Experimental and theoretical work suggested that a proper description of some scattering experiments on this system might require going beyond the static surface approximation, to consider how the motion of the Cu atoms affects the scattering event. Previous work suggested that important effects of phonons on the dynamics can be incorporated in the Potential Energy Surface (PES) by including four degrees of freedom, that have approximately additive couplings with the hydrogen molecule: the 3 dimensional motion of the nearest 1st layer copper atom and the displacement of the nearest 2nd layer copper atom along the direction perpendicular to the surface [3]. In the present work, we extend the 6D dynamical model by including the perpendicular motion of the 2nd layer surface atom and we study this novel dynamical model with two techniques: an approximate method based on the Phonon Sudden Approximation (PSA) and an exact description using 7D wavepacket quantum dynamics. We consider how the inclusion and the excitation of the lattice degree of freedom affect some relevant processes: dissociative chemisorption, vibrational excitation of H2 and state-to-state scattering probabilities fully resolved with respect to the vibrational states of the surface. We show that the PSA works in an excellent way for the system, thereby suggesting that this might be a viable way to study higher dimensional quantum models, incorporating four surface degrees of freedom that appear to be most relevant for H2 scattering.
dc.format application/pdf
dc.language.iso eng
dc.publisher Oldenbourg Verlag
dc.rights info:eu-repo/semantics/openAccess
dc.subject SURFACES
dc.subject DFT
dc.subject HYDROGEN
dc.subject.classification Física Atómica, Molecular y Química
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title 7D Quantum Dynamicsof H2 scattering form Cu(111): the accuracy of the phonon sudden approximation
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2016-05-27T19:42:01Z
dc.journal.volume 227
dc.journal.number 9-11
dc.journal.pagination 1397-1420
dc.journal.pais Alemania
dc.journal.ciudad Munich
dc.description.fil Fil: Bonfanti, Matteo. Leiden University; Países Bajos
dc.description.fil Fil: Somers, Mark F.. Leiden University; Países Bajos
dc.description.fil Fil: Díaz, Cristina. Universidad Autónoma de Madrid; España
dc.description.fil Fil: Busnengo, Heriberto Fabio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
dc.description.fil Fil: Kroes, Geert Jan. Leiden University; Países Bajos
dc.journal.title Zeitschrift Für Physikalische Chemie
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/10.1524/zpch.2013.0405
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/

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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial 2.5 Unported (CC BY-NC 2.5)