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dc.contributor.authorBahamon, D. A.en_US
dc.contributor.authorQi, Zenanen_US
dc.contributor.authorPark, Harold S.en_US
dc.contributor.authorPereira, Vitor M.en_US
dc.contributor.authorCampbell, David K.en_US
dc.date.accessioned2020-04-27T19:51:06Z
dc.date.available2020-04-27T19:51:06Z
dc.date.issued2016-06-06
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000377300200004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=6e74115fe3da270499c3d65c9b17d654
dc.identifier.citationD.A. Bahamon, Zenan Qi, Harold S Park, Vitor M Pereira, David K Campbell. 2016. "Graphene kirigami as a platform for stretchable and tunable quantum dot arrays." PHYSICAL REVIEW B, Volume 93, Issue 23, 9 pp. https://doi.org/10.1103/PhysRevB.93.235408
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.urihttps://hdl.handle.net/2144/40383
dc.description.abstractThe quantum transport properties of a graphene kirigami similar to those studied in recent experiments are calculated in the regime of elastic, reversible deformations. Our results show that, at low electronic densities, the conductance profile of such structures replicates that of a system of coupled quantum dots, characterized by a sequence of minibands and stopgaps. The conductance and I-V curves have different characteristics in the distinct stages of deformation that characterize the elongation of these structures. Notably, the effective coupling between localized states is strongly reduced in the small elongation stage but revived at large elongations that allow the reestablishment of resonant tunneling across the kirigami. This provides an interesting example of interplay between geometry, strain, spatial confinement, and electronic transport. The alternating miniband and stopgap structure in the transmission leads to I-V characteristics with negative differential conductance in well defined energy/doping ranges. These effects should be stable in a realistic scenario that includes edge roughness and Coulomb interactions, as these are expected to further promote localization of states at low energies in narrow segments of graphene nanostructures.en_US
dc.description.sponsorshipD.A.B. acknowledges support from FAPESP Grant No. 2012/50259-8. Z.Q. acknowledges the support of the Mechanical Engineering and Physics Departments at Boston University. V.M.P. acknowledges the support of the National Research Foundation (Singapore) through the CRP grant "Novel 2D materials with tailored properties: beyond graphene" (R-144-000-295-281). (2012/50259-8 - FAPESP; Mechanical Engineering and Physics Departments at Boston University; R-144-000-295-281 - National Research Foundation (Singapore) through the CRP grant "Novel 2D materials with tailored properties: beyond graphene")en_US
dc.format.extent9 pagesen_US
dc.languageEnglish
dc.language.isoen_US
dc.publisherAMER PHYSICAL SOCen_US
dc.relation.ispartofPHYSICAL REVIEW B
dc.rights"©2016 American Physical Society. The final published version of this article appears in OpenBU by permission of the publisher."en_US
dc.subjectScience & technologyen_US
dc.subjectPhysical sciencesen_US
dc.subjectPhysics, applieden_US
dc.subjectPhysics, condensed matteren_US
dc.subjectMaterials scienceen_US
dc.subjectPhysicsen_US
dc.subjectQuantized conductanceen_US
dc.subjectMolecular dynamicsen_US
dc.subjectPoint contactsen_US
dc.subjectTransporten_US
dc.subjectSuperlatticesen_US
dc.subjectConfinementen_US
dc.subjectStatesen_US
dc.subjectWireen_US
dc.titleGraphene kirigami as a platform for stretchable and tunable quantum dot arraysen_US
dc.typeArticleen_US
dc.description.versionPublished versionen_US
dc.identifier.doi10.1103/PhysRevB.93.235408
pubs.elements-sourceweb-of-scienceen_US
pubs.notesEmbargo: No embargoen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Arts & Sciencesen_US
pubs.organisational-groupBoston University, College of Arts & Sciences, Department of Physicsen_US
pubs.organisational-groupBoston University, College of Engineeringen_US
pubs.organisational-groupBoston University, College of Engineering, Department of Mechanical Engineeringen_US
pubs.publication-statusPublisheden_US
dc.identifier.orcid0000-0001-5365-7776 (Park, Harold S)
dc.identifier.orcid0000-0002-4502-5629 (Campbell, David K)
dc.identifier.mycv89544


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