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Crossover of the conductivity of zigzag graphene nanoribbon connected by normal metal contacts

TitleCrossover of the conductivity of zigzag graphene nanoribbon connected by normal metal contacts
Publication TypeJournal Article
Year of Publication2010
AuthorsZhang GP, Qin ZJ
Journal TitlePhysics Letters A
Volume374
Pages4140-4143
Date Published09/06
ISBN Number0375-9601
Accession NumberISI:000282070100012
Keywordsgas, LOCALIZATION, TRANSPORT
Abstract

The transport property of zigzag graphene nanoribbon (ZGNR) connected by two normal metal contacts is investigated by Landauer-Buttiker formula combined with transfer matrix method. In addition to evenodd parity, we found that the conductivity is completely determined by the width-to-length ratio. For certain wide ZGNR with even number carbon atoms in the width direction, the conductivity dependence on the length changes from linearly to inversely, when the length approaches the thermodynamic limit, as the transport property is quite different for different aspect of ZGNR. (C) 2010 Elsevier By. All rights reserved.
URL<Go to ISI>://000282070100012
DOI10.1016/J.Physleta.2010.08.018