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Article: Observation and investigation of graphite superlattice boundaries by scanning tunneling microscopy

TitleObservation and investigation of graphite superlattice boundaries by scanning tunneling microscopy
Authors
KeywordsMorphology
Roughness
Scanning Tunneling Microscopy
Surface Electronic Phenomena
Surface Structure
Topography
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/susc
Citation
Surface Science, 2007, v. 601 n. 2, p. 498-509 How to Cite?
AbstractIn this article, we report on scanning tunneling microscopy (STM) observations of several different kinds of superlattice boundaries on highly-oriented pyrolytic graphite (HOPG) including an array of bead-like structures, a monolayer deep trench, a zig-zag shaped termination, and a plain boundary without features. Results of a simulation model show that a top rotated graphite layer with a straight boundary does not necessarily lead to the zig-zag shaped boundary of the resulting superlattice as has been previously claimed. The formation of the bead-like, trench, and zig-zag shaped boundaries is explained from the energetic point of view. Our study also shows evidence for the superlattice-mediated observation of a low-angle grain boundary with a varying tilt angle. A relationship between the periodicity of the boundary dislocations and the periodicity of the superlattice across the boundary is derived. The result of this work is important for an understanding of superlattices on graphite whose origin is not yet completely understood. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/155349
ISSN
2015 Impact Factor: 1.931
2015 SCImago Journal Rankings: 0.792
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPong, WTen_US
dc.contributor.authorBendall, Jen_US
dc.contributor.authorDurkan, Cen_US
dc.date.accessioned2012-08-08T08:33:01Z-
dc.date.available2012-08-08T08:33:01Z-
dc.date.issued2007en_US
dc.identifier.citationSurface Science, 2007, v. 601 n. 2, p. 498-509en_US
dc.identifier.issn0039-6028en_US
dc.identifier.urihttp://hdl.handle.net/10722/155349-
dc.description.abstractIn this article, we report on scanning tunneling microscopy (STM) observations of several different kinds of superlattice boundaries on highly-oriented pyrolytic graphite (HOPG) including an array of bead-like structures, a monolayer deep trench, a zig-zag shaped termination, and a plain boundary without features. Results of a simulation model show that a top rotated graphite layer with a straight boundary does not necessarily lead to the zig-zag shaped boundary of the resulting superlattice as has been previously claimed. The formation of the bead-like, trench, and zig-zag shaped boundaries is explained from the energetic point of view. Our study also shows evidence for the superlattice-mediated observation of a low-angle grain boundary with a varying tilt angle. A relationship between the periodicity of the boundary dislocations and the periodicity of the superlattice across the boundary is derived. The result of this work is important for an understanding of superlattices on graphite whose origin is not yet completely understood. © 2006 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/suscen_US
dc.relation.ispartofSurface Scienceen_US
dc.subjectMorphologyen_US
dc.subjectRoughnessen_US
dc.subjectScanning Tunneling Microscopyen_US
dc.subjectSurface Electronic Phenomenaen_US
dc.subjectSurface Structureen_US
dc.subjectTopographyen_US
dc.titleObservation and investigation of graphite superlattice boundaries by scanning tunneling microscopyen_US
dc.typeArticleen_US
dc.identifier.emailPong, WT:ppong@eee.hku.hken_US
dc.identifier.authorityPong, WT=rp00217en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.susc.2006.10.012en_US
dc.identifier.scopuseid_2-s2.0-33846078414en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846078414&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume601en_US
dc.identifier.issue2en_US
dc.identifier.spage498en_US
dc.identifier.epage509en_US
dc.identifier.isiWOS:000244006200025-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridPong, WT=24071267900en_US
dc.identifier.scopusauthoridBendall, J=13402609900en_US
dc.identifier.scopusauthoridDurkan, C=6603988799en_US
dc.identifier.citeulike6911205-

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