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dc.creatorOliveira, J. B. de-
dc.creatorOliveira, I. S. S. de-
dc.creatorPadilha, J. E.-
dc.creatorMiwa, R. H.-
dc.date.accessioned2019-04-23T13:26:02Z-
dc.date.available2019-04-23T13:26:02Z-
dc.date.issued2018-
dc.identifier.citationOLIVEIRA, J. B. de et al. Tunable magnetism and spin-polarized electronic transport in graphene mediated by molecular functionalization of extended defects. Physical Review B, New York, v. 97, p. 1-7, 2018. DOI: https://doi.org/10.1103/PhysRevB.97.045107.pt_BR
dc.identifier.urihttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.045107pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/33702-
dc.description.abstractWe 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.pt_BR
dc.languageen_USpt_BR
dc.publisherAmerican Physical Societypt_BR
dc.rightsrestrictAccesspt_BR
dc.sourcePhysical Review Bpt_BR
dc.subjectTunable magnetismpt_BR
dc.subjectExtended linear defectspt_BR
dc.subjectFunctionalized graphene layers - Magnetic transportpt_BR
dc.subjectFunctionalized graphene layers - Electronic transportpt_BR
dc.subjectMagnetismo sintonizávelpt_BR
dc.subjectDefeitos lineares prolongadospt_BR
dc.subjectCamadas de grafeno funcionalizadas - transporte magnéticopt_BR
dc.subjectCamadas de grafeno funcionalizadas - Transporte eletrônicopt_BR
dc.titleTunable magnetism and spin-polarized electronic transport in graphene mediated by molecular functionalization of extended defectspt_BR
dc.typeArtigopt_BR
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