Spin-flip transitions and departure from the Rashba model in the Au(111) surface

We present a detailed analysis of the spin-flip excitations induced by a periodic time-dependent electric field in the Rashba prototype Au(111) noble metal surface. Our calculations incorporate the full spinor structure of the spin-split surface states and employ a Wannier-based scheme for the spin-...

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Detalles Bibliográficos
Autores: Ibañez-Azpiroz, Julen, Bergara, Aitor, Sherman, E. Ya., Eiguren, Asier
Tipo de recurso: artículo
Estado:Versión publicada
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:10261/102454
Acceso en línea:http://hdl.handle.net/10261/102454
Access Level:acceso abierto
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spelling Spin-flip transitions and departure from the Rashba model in the Au(111) surfaceIbañez-Azpiroz, JulenBergara, AitorSherman, E. Ya.Eiguren, AsierWe present a detailed analysis of the spin-flip excitations induced by a periodic time-dependent electric field in the Rashba prototype Au(111) noble metal surface. Our calculations incorporate the full spinor structure of the spin-split surface states and employ a Wannier-based scheme for the spin-flip matrix elements. We find that the spin-flip excitations associated with the surface states exhibit an strong dependence on the electron momentum magnitude, a feature that is absent in the standard Rashba model. Furthermore, we demonstrate that the maximum of the calculated spin-flip absorption rate is about twice the model prediction. These results show that, although the Rashba model accurately describes the spectrum and spin polarization, it does not fully account for the dynamical properties of the surface states. © 2013 American Physical Society.The authors acknowledge financial support from UPV/EHU (Grant No. IT-366-07 and program UFI 11/55), the Spanish Mineco (Grants No. FIS2012-36673-C03-01 and No. FIS2009-12773-C02-01), and the Basque Government (Grant No. IT472-10).Peer ReviewedAmerican Physical SocietyUniversidad del País VascoMinisterio de Economía y Competitividad (España)Eusko Jaurlaritza2014201420132014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/102454reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1103/PhysRevB.88.125404info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1024542026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spin-flip transitions and departure from the Rashba model in the Au(111) surface
title Spin-flip transitions and departure from the Rashba model in the Au(111) surface
spellingShingle Spin-flip transitions and departure from the Rashba model in the Au(111) surface
Ibañez-Azpiroz, Julen
title_short Spin-flip transitions and departure from the Rashba model in the Au(111) surface
title_full Spin-flip transitions and departure from the Rashba model in the Au(111) surface
title_fullStr Spin-flip transitions and departure from the Rashba model in the Au(111) surface
title_full_unstemmed Spin-flip transitions and departure from the Rashba model in the Au(111) surface
title_sort Spin-flip transitions and departure from the Rashba model in the Au(111) surface
dc.creator.none.fl_str_mv Ibañez-Azpiroz, Julen
Bergara, Aitor
Sherman, E. Ya.
Eiguren, Asier
author Ibañez-Azpiroz, Julen
author_facet Ibañez-Azpiroz, Julen
Bergara, Aitor
Sherman, E. Ya.
Eiguren, Asier
author_role author
author2 Bergara, Aitor
Sherman, E. Ya.
Eiguren, Asier
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad del País Vasco
Ministerio de Economía y Competitividad (España)
Eusko Jaurlaritza
description We present a detailed analysis of the spin-flip excitations induced by a periodic time-dependent electric field in the Rashba prototype Au(111) noble metal surface. Our calculations incorporate the full spinor structure of the spin-split surface states and employ a Wannier-based scheme for the spin-flip matrix elements. We find that the spin-flip excitations associated with the surface states exhibit an strong dependence on the electron momentum magnitude, a feature that is absent in the standard Rashba model. Furthermore, we demonstrate that the maximum of the calculated spin-flip absorption rate is about twice the model prediction. These results show that, although the Rashba model accurately describes the spectrum and spin polarization, it does not fully account for the dynamical properties of the surface states. © 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
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/102454
url http://hdl.handle.net/10261/102454
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1103/PhysRevB.88.125404
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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