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Article: Lateral in-plane coupling between graphene nanoribbons: a density functional study

TitleLateral in-plane coupling between graphene nanoribbons: a density functional study
Authors
KeywordsDensity-functional study
Edge state
Effective coupling
First-principles
Graphene nanoribbons
Issue Date2012
PublisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp
Citation
Journal of Applied Physics, 2012, v. 111 n. 4, article no. 043714 How to Cite?
AbstractProperties brought about by lateral in-plane coupling between graphene nanoribbons (GNRs) are investigated using the first-principle total energy calculations. It is found that, when two GNRs approach each other, the lateral coupling between the two brings about edge state splitting. Between zigzag-edged graphene nanoribbons (ZGNRs), the coupling mainly results from Coulomb and spin-spin interaction, while for armchair-edged graphene nanoribbons (AGNRs), it is from Coulomb interaction only. It is further found that the maximum inter-ribbon distance for effective coupling depends on the type of ribbons, which is ∼10 Å for ZGNRs, but ∼6 Å for AGNRs. Also, displacements of the GNRs along the ribbon direction are found to affect the electronic properties of the coupled GNRs. The results may be important for the microminiaturization of future nanoelectronic and spintronic devices based on graphene. © 2012 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/145921
ISSN
2014 Impact Factor: 2.183
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China (NSFC)11047026
Henan Science and Technology Innovation Talent Support Program2008HASTIT030
Funding Information:

This research work has been supported by the National Natural Science Foundation of China (NSFC) under Grant No. 11047026 and Henan Science and Technology Innovation Talent Support Program (2008HASTIT030).

 

DC FieldValueLanguage
dc.contributor.authorZhao, Jen_US
dc.contributor.authorDai, Xen_US
dc.contributor.authorDai, Yen_US
dc.contributor.authorZhao, Ben_US
dc.contributor.authorXie, Men_US
dc.date.accessioned2012-03-27T09:02:07Z-
dc.date.available2012-03-27T09:02:07Z-
dc.date.issued2012en_US
dc.identifier.citationJournal of Applied Physics, 2012, v. 111 n. 4, article no. 043714en_US
dc.identifier.issn0021-8979-
dc.identifier.urihttp://hdl.handle.net/10722/145921-
dc.description.abstractProperties brought about by lateral in-plane coupling between graphene nanoribbons (GNRs) are investigated using the first-principle total energy calculations. It is found that, when two GNRs approach each other, the lateral coupling between the two brings about edge state splitting. Between zigzag-edged graphene nanoribbons (ZGNRs), the coupling mainly results from Coulomb and spin-spin interaction, while for armchair-edged graphene nanoribbons (AGNRs), it is from Coulomb interaction only. It is further found that the maximum inter-ribbon distance for effective coupling depends on the type of ribbons, which is ∼10 Å for ZGNRs, but ∼6 Å for AGNRs. Also, displacements of the GNRs along the ribbon direction are found to affect the electronic properties of the coupled GNRs. The results may be important for the microminiaturization of future nanoelectronic and spintronic devices based on graphene. © 2012 American Institute of Physics.-
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jspen_US
dc.relation.ispartofJournal of Applied Physicsen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong Licenseen_US
dc.rightsCopyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Journal of Applied Physics, 2012, v. 111 n. 4, article no. 043714) and may be found at (http://jap.aip.org/resource/1/japiau/v111/i4/p043714_s1).en_US
dc.subjectDensity-functional study-
dc.subjectEdge state-
dc.subjectEffective coupling-
dc.subjectFirst-principles-
dc.subjectGraphene nanoribbons-
dc.titleLateral in-plane coupling between graphene nanoribbons: a density functional studyen_US
dc.typeArticleen_US
dc.identifier.emailXie, M: mhxie@hku.hken_US
dc.identifier.authorityXie, MH=rp00818en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1063/1.3686673-
dc.identifier.scopuseid_2-s2.0-84863259797-
dc.identifier.hkuros198997en_US
dc.identifier.volume111en_US
dc.identifier.issue4, article no. 043714-
dc.identifier.isiWOS:000300948600052-
dc.publisher.placeUnited States-

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