Work

Conductance quantization and transport gaps in disordered graphene nanoribbons

Year: 2009

Type: article

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.

Source: Physical Review B

DOI: 10.1103/physrevb.79.075407

Authors: E. R. Mucciolo, A. H. Castro Neto, C. H. Lewenkopf

Institutions: University of Central Florida, Boston University, Universidade do Estado do Rio de Janeiro, Brazilian Synchrotron Light Laboratory

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: Aspen Center for Physics, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro

OpenAlex ID: W2006861517

FWCI: 20.65

Cites: 27

Cited by: 340

Related to: 10