Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles

We present first-principles calculations of a (√3×√3)R30° Bi∕Ag(111)-ordered surface alloy, which has recently been investigated experimentally using angle-resolved photoemission spectroscopy. The surface states in the L-projected bulk band gap show a Rashba-type spin-orbit splitting which is three...

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Detalles Bibliográficos
Autores: Bihlmayer, Gustav, Blügel, S., Chulkov, Eugene V.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/224660
Acceso en línea:http://hdl.handle.net/10261/224660
Access Level:acceso abierto
Palabra clave:ddc:530
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repository_id_str
spelling Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principlesBihlmayer, GustavBlügel, S.Chulkov, Eugene V.ddc:530We present first-principles calculations of a (√3×√3)R30° Bi∕Ag(111)-ordered surface alloy, which has recently been investigated experimentally using angle-resolved photoemission spectroscopy. The surface states in the L-projected bulk band gap show a Rashba-type spin-orbit splitting which is three times larger than what has been observed on a clean Bi(111) surface. This large enhancement can be explained by the strong distortion of the surface-state wave function which is caused by the substantial outward buckling of the Bi atom. Also, in a similar surface alloy, Pb∕Ag(111), a strong Rashba-type splitting was found by our calculations. The comparison to the experimental data is more difficult due to the presence of a second, close-by surface state. We discuss the dependence of the two-dimensional band structure on the surface corrugation and compare to the experimental findings.Peer reviewedAmerican Physical SocietyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202007info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/224660reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1103/PhysRevB.75.195414Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2246602026-05-22T06:33:51Z
dc.title.none.fl_str_mv Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
title Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
spellingShingle Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
Bihlmayer, Gustav
ddc:530
title_short Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
title_full Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
title_fullStr Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
title_full_unstemmed Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
title_sort Enhanced Rashba spin-orbit splitting in Bi/Ag (111) and Pb/Ag (111) surface alloys from first principles
dc.creator.none.fl_str_mv Bihlmayer, Gustav
Blügel, S.
Chulkov, Eugene V.
author Bihlmayer, Gustav
author_facet Bihlmayer, Gustav
Blügel, S.
Chulkov, Eugene V.
author_role author
author2 Blügel, S.
Chulkov, Eugene V.
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv ddc:530
topic ddc:530
description We present first-principles calculations of a (√3×√3)R30° Bi∕Ag(111)-ordered surface alloy, which has recently been investigated experimentally using angle-resolved photoemission spectroscopy. The surface states in the L-projected bulk band gap show a Rashba-type spin-orbit splitting which is three times larger than what has been observed on a clean Bi(111) surface. This large enhancement can be explained by the strong distortion of the surface-state wave function which is caused by the substantial outward buckling of the Bi atom. Also, in a similar surface alloy, Pb∕Ag(111), a strong Rashba-type splitting was found by our calculations. The comparison to the experimental data is more difficult due to the presence of a second, close-by surface state. We discuss the dependence of the two-dimensional band structure on the surface corrugation and compare to the experimental findings.
publishDate 2007
dc.date.none.fl_str_mv 2007
2020
2020
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/10261/224660
url http://hdl.handle.net/10261/224660
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1103/PhysRevB.75.195414
Sí
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 15.811543

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