Tuning transport properties of graphene three-terminal structures by mechanical deformation

Página do item simplificado
dc.contributor.authorTorres V.
dc.contributor.authorFaria D.
dc.contributor.authorLatge A.
dc.date.accessioned2024-03-12T23:58:04Z
dc.date.available2024-03-12T23:58:04Z
dc.date.issued2018
dc.description.abstract© 2018 American Physical Society.Straintronic devices made of carbon-based materials have been pushed up due to the graphene high mechanical flexibility and the possibility of interesting changes in transport properties. Properly designed strained systems have been proposed to allow optimized transport responses that can be explored in experimental realizations. In multiterminal systems, comparisons between schemes with different geometries are important to characterize the modifications introduced by mechanical deformations, especially if the deformations are localized at a central part of the system or extended in a large region. Then, in the present analysis, we study the strain effects on the transport properties of triangular and hexagonal graphene flakes, with zigzag and armchair edges, connected to three electronic terminals, formed by semi-infinite graphene nanoribbons. Using the Green's function formalism with circular renormalization schemes, and a single band tight-binding approximation, we find that resonant tunneling transport becomes relevant and is more affected by localized deformations in the hexagonal graphene flakes. Moreover, triangular systems with deformation extended to the leads, like longitudinal three-folded type, are shown as an interesting scenario for building nanoscale waveguides for electronic current.
dc.description.issuenumber16
dc.description.volume97
dc.identifier.doi10.1103/PhysRevB.97.165429
dc.identifier.issn2469-9969
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35541
dc.relation.ispartofPhysical Review B
dc.rightsAcesso Restrito
dc.titleTuning transport properties of graphene three-terminal structures by mechanical deformation
dc.typeArtigo
local.scopus.citations16
local.scopus.eid2-s2.0-85046037902
local.scopus.subjectCarbon based materials
local.scopus.subjectExperimental realizations
local.scopus.subjectLocalized deformations
local.scopus.subjectMechanical deformation
local.scopus.subjectMechanical flexibility
local.scopus.subjectNano-scale waveguides
local.scopus.subjectTight-binding approximations
local.scopus.subjectTunneling transports
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85046037902&origin=inward
Arquivos
Coleções
Artigos de periódico