Spin-charge separation of plasmonic excitations in thin topological insulators

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dc.contributor.author Stauber, Tobias
dc.contributor.author Gómez-Santos, G.
dc.contributor.author Brey, L.
dc.contributor.other UAM. Departamento de Física de la Materia Condensada es_ES
dc.date.accessioned 2016-03-31T16:16:05Z
dc.date.available 2016-03-31T16:16:05Z
dc.date.issued 2013-11-27
dc.identifier.citation Physical Review B 88.20 (2013): 205427 en_US
dc.identifier.issn 1098-0121 (print) es_ES
dc.identifier.issn 1550-235X (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/670424
dc.description.abstract We discuss plasmonic excitations in a thin slab of topological insulators. In the limit of no hybridization of the surface states and same electronic density of the two layers, the electrostatic coupling between the top and bottom layers leads to optical and acoustic plasmons which are purely charge and spin collective oscillations. We then argue that a recent experiment on the plasmonic excitations of Bi2Se3 must be explained by including the charge response of the two-dimensional electron gas of the depletion layer underneath the two surfaces. We also present an analytic formula to fit their data en_US
dc.description.sponsorship This work has been supported by FCT under Grants PTDC/FIS/101434/2008 and PTDC/FIS/113199/2009 and MIC under Grants FIS2010-21883-C02-02; FIS2012-33521; and FIS2012-37549-C05-03 en_US
dc.format.extent 6 pag. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher American Physical Society en_US
dc.relation.ispartof Physical Review B - Condensed Matter and Materials Physics en_US
dc.rights © 2013 American Physical Society en_US
dc.title Spin-charge separation of plasmonic excitations in thin topological insulators en_US
dc.type article en
dc.subject.eciencia Física es_ES
dc.relation.publisherversion http://dx.doi.org/10.1103/PhysRevB.88.205427 es_ES
dc.identifier.doi 10.1103/PhysRevB.88.205427 es_ES
dc.identifier.publicationfirstpage 205427 es_ES
dc.identifier.publicationissue 20 es_ES
dc.identifier.publicationlastpage 205427 es_ES
dc.identifier.publicationvolume 88 es_ES
dc.relation.projectID Gobierno de España. FIS2010- 21883-C02-02 es_ES
dc.relation.projectID Gobierno de España. FIS2012-33521 es_ES
dc.relation.projectID Gobierno de España. FIS2012-37549-C05-03 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.accessRights openAccess en
dc.authorUAM Stauber , Tobías (264464)

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