Title

Numerical Studies Of Conductivity And Fano Factor In Disordered Graphene

Abstract

Using the recursive Green's function method, we study the problem of electron transport in a disordered single-layer graphene sheet. The conductivity is of order e2 h and its dependence on the carrier density has a scaling form that is controlled solely by the disorder strength and the ratio between the sample size and the correlation length of the disorder potential. The shot noise Fano factor is shown to be nearly density independent for sufficiently strong disorder, with a narrow structure appearing at the neutrality point only for weakly disordered samples. Our results are in good agreement with experiments and provide a way for extracting microscopic information about the magnitude of extrinsic disorder in graphene. © 2008 The American Physical Society.

Publication Date

2-27-2008

Publication Title

Physical Review B - Condensed Matter and Materials Physics

Volume

77

Issue

8

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevB.77.081410

Socpus ID

40849098550 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/40849098550

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