Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride

PACS number(s): 78.70.Ck, 71.20.−b, 71.15.−m.-- et al.

Detalles Bibliográficos
Autores: Galambosi, S., Wirtz, Ludger, Marini, Andrea, Taniguchi, M., Rubio, Angel
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/50478
Acceso en línea:http://hdl.handle.net/10261/50478
Access Level:acceso abierto
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spelling Anisotropic excitonic effects in the energy loss function of hexagonal boron nitrideGalambosi, S.Wirtz, LudgerMarini, AndreaTaniguchi, M.Rubio, AngelPACS number(s): 78.70.Ck, 71.20.−b, 71.15.−m.-- et al.The anisotropy of the valence energy-loss function of hexagonal boron nitride (hBN) is shown to be largely enhanced by the highly inhomogeneous character of the excitonic states. The energy loss with momentum transfer parallel to the BN layers is dominated by strongly bound, quasi-two-dimensional excitons. In contrast, excitations with momentum transfer perpendicular to the layers are influenced by weakly bound three-dimensional excitons. This striking phenomenon is revealed by a combined study using high-precision nonresonant inelastic x-ray scattering measurements supported by ab initio calculations. The results are relevant in general to layered insulating systems.This work was supported by the Academy of Finland (Grant No. 1127462/110571), the Spanish MEC (Grant No. FIS2007-65702-C02-01), Grupos Consolidados UPV/EHU del Gobierno Vasco (Grant No. IT-319-07), the European Community through the e-I3 ETSF project (Grant No. GA 211956). J.A.S. benefited from the CMS Network RIXS collaboration supported by the U S DoE (Grant No. DE-FG02-08ER46540). L.W. acknowledges funding by the ANR through Project No. ANR-09-BLAN-0421-01. Computing time was provided by the Red Espanola de Supercomputación and IDRIS (Project No. 091827).Peer ReviewedAmerican Physical Society2012201220112012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/50478reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/211956http://dx.doi.org/10.1103/PhysRevB.83.081413info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/504782026-05-22T06:33:51Z
dc.title.none.fl_str_mv Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
title Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
spellingShingle Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
Galambosi, S.
title_short Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
title_full Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
title_fullStr Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
title_full_unstemmed Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
title_sort Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride
dc.creator.none.fl_str_mv Galambosi, S.
Wirtz, Ludger
Marini, Andrea
Taniguchi, M.
Rubio, Angel
author Galambosi, S.
author_facet Galambosi, S.
Wirtz, Ludger
Marini, Andrea
Taniguchi, M.
Rubio, Angel
author_role author
author2 Wirtz, Ludger
Marini, Andrea
Taniguchi, M.
Rubio, Angel
author2_role author
author
author
author
description PACS number(s): 78.70.Ck, 71.20.−b, 71.15.−m.-- et al.
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/10261/50478
url http://hdl.handle.net/10261/50478
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/211956
http://dx.doi.org/10.1103/PhysRevB.83.081413
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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