Recovery of the scattering symmetry looking at the conductance in asymmetric graphene nano-ribbons systems using pseudo-spin filters

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dc.contributor.authorLopez L.I.A.
dc.contributor.authorUjevic S.
dc.contributor.authorMendoza M.
dc.date.accessioned2024-03-12T23:55:37Z
dc.date.available2024-03-12T23:55:37Z
dc.date.issued2019
dc.description.abstract© 2019 IOP Publishing Ltd.In this work we study some applications for pseudo-spin filters. The filters are potential barriers with hyperboloid sub-band contributions that are locally applied over graphene nano-ribbons. These filters modulate the pseudo-spin and the quirality of the wave-function allowing the recovery of the conductance loss due to imperfections, bends, or constrictions (asymmetries) found in the system. The recovery of the conductance is fulfilled by a direct manipulation of the pseudo-spin polarization at both sides of the device by localizing the filters at the system's entrance and exit points. This procedure allows the recovery of the wave-function symmetry at these points with the consequent recovery of the conductance, even when it is zero, regardless of the different internal regions that affect the transmission, i.e. the filters are used as patches for damaged regions. Our results can be extrapolated for spatially asymmetrical potentials generated by electrical (or magnetic) impurities.
dc.description.issuenumber15
dc.description.volume31
dc.identifier.doi10.1088/1361-648X/ab015a
dc.identifier.issn0953-8984
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35403
dc.relation.ispartofJournal of Physics Condensed Matter
dc.rightsAcesso Restrito
dc.subject.otherlanguagegraphene nanoribbons
dc.subject.otherlanguagepseudo-spin
dc.subject.otherlanguagepseudo-spin flters
dc.subject.otherlanguageQuantum transport properties
dc.titleRecovery of the scattering symmetry looking at the conductance in asymmetric graphene nano-ribbons systems using pseudo-spin filters
dc.typeArtigo
local.scopus.citations3
local.scopus.eid2-s2.0-85062407735
local.scopus.subjectDamaged region
local.scopus.subjectDirect manipulation
local.scopus.subjectGraphene nano-ribbon
local.scopus.subjectGraphene nanoribbons
local.scopus.subjectPotential barriers
local.scopus.subjectpseudo-spin
local.scopus.subjectpseudo-spin flters
local.scopus.subjectQuantum transport properties
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85062407735&origin=inward
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