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dc.contributor.authorSantos, Hernán-
dc.contributor.authorChico, Leonor-
dc.contributor.authorAlvarellos, J. E.-
dc.contributor.authorLatgé, A.-
dc.date.accessioned2019-08-26T10:50:32Z-
dc.date.available2019-08-26T10:50:32Z-
dc.date.issued2017-10-15-
dc.identifierdoi: 10.1103/PhysRevB.96.165401-
dc.identifierissn: 2469-9950-
dc.identifiere-issn: 2469-9969-
dc.identifier.citationPhysical Review - Section B - Condensed Matter 96(16): 165401 (2017)-
dc.identifier.urihttp://hdl.handle.net/10261/189139-
dc.description.abstractThe production of spin-polarized currents in pristine carbon nanotubes with Rashba spin-orbit interactions has been shown to be very sensitive to the symmetry of the tubes and the geometry of the setup. Here we analyze the role of defects on the spin quantum conductances of metallic carbon nanotubes due to an external electric field. We show that localized defects, such as adsorbed hydrogen atoms or pentagon-heptagon pairs, increase the Rashba spin-polarized current. Moreover, this enhancement takes place for energies closer to the Fermi energy as compared to the response of pristine tubes. Such increments can be even larger when several equally spaced defects are introduced into the system. We explore different arrangements of defects, showing that for certain geometries there are flips of the spin-polarized current and even transport suppression. Our results indicate that spin valve devices at the nanoscale may be achieved via defect engineering in carbon nanotubes.-
dc.description.sponsorshipA.L. acknowledges the financial support of FAPERJ through Grants No. E-26/102.272/2013 and No. E-26/202.953/2016, CNPq, and INCT em Nanomateriais de Carbono. L.C. acknowledges support from Spanish MINECO through Grant No. FIS2015-64654-P, and helpful conversations with Jorge I. Cerdá. H.S. is grateful for financial support from the Brazilian CAPES.-
dc.publisherAmerican Physical Society-
dc.relationMINECO/ICTI2013-2016/FIS2015-64654-P-
dc.rightsclosedAccess-
dc.titleDefect-enhanced Rashba spin-polarized currents in carbon nanotubes-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.96.165401-
dc.relation.publisherversionhttps://doi.org/10.1103/PhysRevB.96.165401-
dc.date.updated2019-08-26T10:50:33Z-
dc.language.rfc3066eng-
dc.contributor.funderCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro-
dc.contributor.funderConselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)-
dc.contributor.funderInstituto Nacional de Ciência e Tecnologia em Nanomateriais de Carbono (Brasil)-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100007392es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003593es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100004586es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100002322es_ES
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