Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states

The photoemission cross-section of Shockley states of Cu(111) and Ag(111) surfaces is studied over a wide range of photon energies. The constant initial-state spectra are very different for the two surfaces and show rich structure that does not follow the generally accepted nearly free electron mode...

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Autores: Lobo-Checa, Jorge, Ortega, J. Enrique, Mascaraque, Arantzazu, Michel, Enrique G., Krasovskii, E. E.
Formato: artículo
Fecha de publicación:2011
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/50601
Acesso em linha:http://hdl.handle.net/10261/50601
Access Level:acceso abierto
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spelling Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley statesLobo-Checa, JorgeOrtega, J. EnriqueMascaraque, ArantzazuMichel, Enrique G.Krasovskii, E. E.The photoemission cross-section of Shockley states of Cu(111) and Ag(111) surfaces is studied over a wide range of photon energies. The constant initial-state spectra are very different for the two surfaces and show rich structure that does not follow the generally accepted nearly free electron model for the final state. Angle resolved photoemission data are interpreted within a one-step ab initio theory, revealing a multiple Bloch wave structure of photoemission final states. The inelastic scattering parameter-optical potential-is determined, and the energy dependence of the mean free path of the outgoing electron is calculated, which turns out to be the key for the understanding of the photoemission cross-section curve. These are essential steps for future exploration of wave function perturbations in the presence of surface nanostructures. 2011 American Physical Society.This work was supported by the Spanish Ministerio de Ciencia e Innovación (Grants No. FIS2010-19609-C02-02, FIS2008-00399, MAT2010-21156-C03-01, and MAT2010-21156-C03-02 and through the Research Program Ramón y Cajal) and the Basque Government (IT-257-07). The SRC is funded by the National Science Foundation (Award No. DMR-0084402).Peer ReviewedAmerican Physical SocietyMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas (España)European CommissionEusko JaurlaritzaNational Science Foundation (US)2012201220112012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/50601reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/506012026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
title Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
spellingShingle Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
Lobo-Checa, Jorge
title_short Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
title_full Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
title_fullStr Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
title_full_unstemmed Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
title_sort Effect of photoelectron mean free path on the photoemission cross-section of Cu(111) and Ag(111) Shockley states
dc.creator.none.fl_str_mv Lobo-Checa, Jorge
Ortega, J. Enrique
Mascaraque, Arantzazu
Michel, Enrique G.
Krasovskii, E. E.
author Lobo-Checa, Jorge
author_facet Lobo-Checa, Jorge
Ortega, J. Enrique
Mascaraque, Arantzazu
Michel, Enrique G.
Krasovskii, E. E.
author_role author
author2 Ortega, J. Enrique
Mascaraque, Arantzazu
Michel, Enrique G.
Krasovskii, E. E.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas (España)
European Commission
Eusko Jaurlaritza
National Science Foundation (US)
description The photoemission cross-section of Shockley states of Cu(111) and Ag(111) surfaces is studied over a wide range of photon energies. The constant initial-state spectra are very different for the two surfaces and show rich structure that does not follow the generally accepted nearly free electron model for the final state. Angle resolved photoemission data are interpreted within a one-step ab initio theory, revealing a multiple Bloch wave structure of photoemission final states. The inelastic scattering parameter-optical potential-is determined, and the energy dependence of the mean free path of the outgoing electron is calculated, which turns out to be the key for the understanding of the photoemission cross-section curve. These are essential steps for future exploration of wave function perturbations in the presence of surface nanostructures. 2011 American Physical Society.
publishDate 2011
dc.date.none.fl_str_mv 2011
2012
2012
2012
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/10261/50601
url http://hdl.handle.net/10261/50601
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 Physical Society
publisher.none.fl_str_mv American Physical Society
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 15,812429

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