Polarization-induced switching effect in graphene nanoribbon edge-defect junction

G. Yin, Y. Y. Liang, F. Jiang, H. Chen, P. Wang, R. Note, H. Mizuseki, Y. Kawazoe

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


With nonequilibrium Green's function approach combined with density functional theory, we perform an ab initio calculation to investigate transport properties of graphene nanoribbon (GNR) junctions self-consistently. Tight-binding approximation is applied to model the zigzag (ZGNR) electrodes, and its validity is confirmed in comparison to the GAUSSIAN03 periodic boundary condition calculation result of the same system. The origin of abnormal jump points usually appearing in the transmission spectrum is explained with the detailed tight-binding ZGNR band structure. Transport property of an edge-defect ZGNR junction is investigated, and the tunable tunneling current can be sensitively controlled by transverse electric fields.

Original languageEnglish
Article number234706
JournalJournal of Chemical Physics
Issue number23
Publication statusPublished - 2009


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