Two-dimensional graphene with structural defects: Elastic mean free path, minimum conductivity, and anderson transition

Aurélien Lherbier; Simon M.M. Dubois; Xavier Declerck; Stephan Roche; Yann Michel Niquet; Jean Christophe Charlier

doi:10.1103/PhysRevLett.106.046803

Two-dimensional graphene with structural defects: Elastic mean free path, minimum conductivity, and anderson transition

Aurélien Lherbier, Simon M.M. Dubois, Xavier Declerck, Stephan Roche, Yann Michel Niquet, Jean Christophe Charlier

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

69 Citations (Scopus)

Abstract

Quantum transport properties of disordered graphene with structural defects (Stone-Wales and divacancies) are investigated using a realistic π-π* tight-binding model elaborated from ab initio calculations. Mean free paths and semiclassical conductivities are then computed as a function of the nature and density of defects (using an order-N real-space Kubo-Greenwood method). By increasing the defect density, the decay of the semiclassical conductivities is predicted to saturate to a minimum value of 4e2/πh over a large range (plateau) of carrier density (>0. 5×1014cm-2). Additionally, strong contributions of quantum interferences suggest that the Anderson localization regime could be experimentally measurable for a defect density as low as 1%. © 2011 American Physical Society.

Original language	English
Article number	046803
Journal	Physical Review Letters
Volume	106
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.106.046803
Publication status	Published - 25 Jan 2011

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title = "Two-dimensional graphene with structural defects: Elastic mean free path, minimum conductivity, and anderson transition",

abstract = "Quantum transport properties of disordered graphene with structural defects (Stone-Wales and divacancies) are investigated using a realistic π-π* tight-binding model elaborated from ab initio calculations. Mean free paths and semiclassical conductivities are then computed as a function of the nature and density of defects (using an order-N real-space Kubo-Greenwood method). By increasing the defect density, the decay of the semiclassical conductivities is predicted to saturate to a minimum value of 4e2/πh over a large range (plateau) of carrier density (>0. 5×1014cm-2). Additionally, strong contributions of quantum interferences suggest that the Anderson localization regime could be experimentally measurable for a defect density as low as 1%. {\textcopyright} 2011 American Physical Society.",

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Two-dimensional graphene with structural defects: Elastic mean free path, minimum conductivity, and anderson transition. / Lherbier, Aurélien; Dubois, Simon M.M.; Declerck, Xavier; Roche, Stephan; Niquet, Yann Michel; Charlier, Jean Christophe.

In: Physical Review Letters, Vol. 106, No. 4, 046803, 25.01.2011.

Research output: Contribution to journal › Article › Research › peer-review

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T1 - Two-dimensional graphene with structural defects: Elastic mean free path, minimum conductivity, and anderson transition

AU - Lherbier, Aurélien

AU - Dubois, Simon M.M.

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AU - Roche, Stephan

AU - Niquet, Yann Michel

AU - Charlier, Jean Christophe

PY - 2011/1/25

Y1 - 2011/1/25

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