Title

Conductance Quantization And Transport Gaps In Disordered Graphene Nanoribbons

Abstract

We study numerically the effects of edge and bulk disorder on the conductance of graphene nanoribbons. We compute the conductance suppression due to Anderson localization induced by edge scattering and find that even for weak edge roughness, conductance steps are suppressed and transport gaps are induced. These gaps are approximately inversely proportional to the nanoribbon width. On/off conductance ratios grow exponentially with the nanoribbon length. Our results impose severe limitations to the use of graphene in ballistic nanowires. © 2009 The American Physical Society.

Publication Date

2-2-2009

Publication Title

Physical Review B - Condensed Matter and Materials Physics

Volume

79

Issue

7

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevB.79.075407

Socpus ID

60949113491 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/60949113491

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