Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations

Helium atom scattering (HAS) was used to study the antimony Sb(111) surface beyond the hard-wall model. HAS angular distributions and drift spectra show a number of selective adsorption resonance features, which correspond to five bound-state energies for He atoms trapped in the surface-averaged He-...

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Autores: Mayrhofer-Reinhartshuber, M., Kraus, P., Tamtögl, A., Miret-Artés, Salvador, Ernst, W.E.
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/89517
Acceso en línea:http://hdl.handle.net/10261/89517
Access Level:acceso abierto
Palabra clave:[PACS] Atom scattering from surfaces (diffraction and energy transfer)
[PACS] Adsorption kinetics
[PACS] Scattering of atoms and molecules
[PACS] Interactions of atoms and molecules with surfaces
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spelling Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculationsMayrhofer-Reinhartshuber, M.Kraus, P.Tamtögl, A.Miret-Artés, SalvadorErnst, W.E.[PACS] Atom scattering from surfaces (diffraction and energy transfer)[PACS] Adsorption kinetics[PACS] Scattering of atoms and molecules[PACS] Interactions of atoms and molecules with surfacesHelium atom scattering (HAS) was used to study the antimony Sb(111) surface beyond the hard-wall model. HAS angular distributions and drift spectra show a number of selective adsorption resonance features, which correspond to five bound-state energies for He atoms trapped in the surface-averaged He-Sb(111) potential. As their best representation, a 9-3 potential with a depth of 4.4±0.1 meV was determined. Furthermore, the charge density corrugation of the surface was analyzed using close-coupling calculations. By using a hybrid potential, consisting of a corrugated Morse potential (short range) and a 9-3 potential (long range), a peak-to-peak corrugation of 17% was obtained. The kinematic focusing effects that occurred were in good agreement with surface phonon dispersion curves from already published density functional perturbation theory calculations. © 2013 American Physical Society. This research was supported by the European Commission and the Styrian Government within the ERDF program. S.M.A. acknowledges support from MICINN (Spain) through Grant No. FIS2011-29596-C02-01.Peer ReviewedAmerican Institute of Physics2014201420132014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/89517reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/895172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
title Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
spellingShingle Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
Mayrhofer-Reinhartshuber, M.
[PACS] Atom scattering from surfaces (diffraction and energy transfer)
[PACS] Adsorption kinetics
[PACS] Scattering of atoms and molecules
[PACS] Interactions of atoms and molecules with surfaces
title_short Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
title_full Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
title_fullStr Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
title_full_unstemmed Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
title_sort Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
dc.creator.none.fl_str_mv Mayrhofer-Reinhartshuber, M.
Kraus, P.
Tamtögl, A.
Miret-Artés, Salvador
Ernst, W.E.
author Mayrhofer-Reinhartshuber, M.
author_facet Mayrhofer-Reinhartshuber, M.
Kraus, P.
Tamtögl, A.
Miret-Artés, Salvador
Ernst, W.E.
author_role author
author2 Kraus, P.
Tamtögl, A.
Miret-Artés, Salvador
Ernst, W.E.
author2_role author
author
author
author
dc.subject.none.fl_str_mv [PACS] Atom scattering from surfaces (diffraction and energy transfer)
[PACS] Adsorption kinetics
[PACS] Scattering of atoms and molecules
[PACS] Interactions of atoms and molecules with surfaces
topic [PACS] Atom scattering from surfaces (diffraction and energy transfer)
[PACS] Adsorption kinetics
[PACS] Scattering of atoms and molecules
[PACS] Interactions of atoms and molecules with surfaces
description Helium atom scattering (HAS) was used to study the antimony Sb(111) surface beyond the hard-wall model. HAS angular distributions and drift spectra show a number of selective adsorption resonance features, which correspond to five bound-state energies for He atoms trapped in the surface-averaged He-Sb(111) potential. As their best representation, a 9-3 potential with a depth of 4.4±0.1 meV was determined. Furthermore, the charge density corrugation of the surface was analyzed using close-coupling calculations. By using a hybrid potential, consisting of a corrugated Morse potential (short range) and a 9-3 potential (long range), a peak-to-peak corrugation of 17% was obtained. The kinematic focusing effects that occurred were in good agreement with surface phonon dispersion curves from already published density functional perturbation theory calculations. © 2013 American Physical Society.
publishDate 2013
dc.date.none.fl_str_mv 2013
2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/89517
url http://hdl.handle.net/10261/89517
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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