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Conduction suppression in graphene nanoribbons with a vacancy

✍ Scribed by Yong-Jian Xiong; Xiao-Lan Kong

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
599 KB
Volume
405
Category
Article
ISSN
0921-4526

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✦ Synopsis

The effect of a vacancy on the coherent transport properties of graphene nanoribbons is investigated numerically. For zigzag and metallic armchair graphene ribbons, a single vacancy within the interior can suppress the conductance at several Fermi energies in the first subband. This conductance suppression is related to the localization induced by the vacancy. A perpendicular magnetic field of sufficient strength can destroy the localization and reduce this conductance suppression.

πŸ“œ SIMILAR VOLUMES

Electronic transport properties of metal
Electronic transport properties of metallic graphene nanoribbons with two vacancies
✍ K.L. Ma; X.H. Yan; Y. Xiao; Y.P. Chen πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 909 KB

We studied theoretically the electronic transport of metallic graphene nanoribbons (GNRs) with two vacancies using the tight-binding model and Green's function method. The results show that the conductance of zigzag GNR (ZGNR) varies with the relative position of two vacancies. However, when two vac