Tunable magnetism and spin-polarized electronic transport in graphene mediated by molecular functionalization of extended defects

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorOliveira, J. B. de-
Autor(es): dc.creatorOliveira, I. S. S. de-
Autor(es): dc.creatorPadilha, J. E.-
Autor(es): dc.creatorMiwa, R. H.-
Data de aceite: dc.date.accessioned2026-02-09T12:51:53Z-
Data de disponibilização: dc.date.available2026-02-09T12:51:53Z-
Data de envio: dc.date.issued2019-04-23-
Data de envio: dc.date.issued2019-04-23-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/33702-
Fonte completa do material: dc.identifierhttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.045107-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1169769-
Descrição: dc.descriptionWe use first-principles simulations to investigate the magnetic and the electronic transport properties of functionalized graphene layers upon the presence of extended linear defects (ELDs). We have considered electron-donor molecules, tetrathiafulvalene (TTF), lying on the graphene sites neighboring the ELD (TTF/ELD). Those molecules bond to the graphene sheet mediated by van der Waals interactions, giving rise to a net (molecule→graphene) charge transfer. The n-type doping of graphene, as well as the molecule-graphene interaction, are strengthened by the presence of the ELD. There is a charge density accumulation on the C atoms along the defect sites, promoting the formation of magnetic states in TTF/ELD. We show that such a net magnetization can be modified through an external electric field (Efield). Further electronic transport calculations reveal that the transmission coefficients exhibit a spin anisotropy which can be controlled by the Efield, and thus showing that TTF/ELD is a quite interesting system to realize tunable spin-polarized electronic currents on graphene.-
Idioma: dc.languageen-
Publicador: dc.publisherAmerican Physical Society-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePhysical Review B-
Palavras-chave: dc.subjectTunable magnetism-
Palavras-chave: dc.subjectExtended linear defects-
Palavras-chave: dc.subjectFunctionalized graphene layers - Magnetic transport-
Palavras-chave: dc.subjectFunctionalized graphene layers - Electronic transport-
Palavras-chave: dc.subjectMagnetismo sintonizável-
Palavras-chave: dc.subjectDefeitos lineares prolongados-
Palavras-chave: dc.subjectCamadas de grafeno funcionalizadas - transporte magnético-
Palavras-chave: dc.subjectCamadas de grafeno funcionalizadas - Transporte eletrônico-
Título: dc.titleTunable magnetism and spin-polarized electronic transport in graphene mediated by molecular functionalization of extended defects-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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