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Random resistor network model of minimal conductivity in graphene

Research output: Contribution to journalJournal article

Published
Article number176801
<mark>Journal publication date</mark>26/10/2007
<mark>Journal</mark>Physical Review Letters
Issue number17
Volume99
Number of pages4
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

Transport in undoped graphene is related to percolating current patterns in the networks of n- and p-type regions reflecting the strong bipolar charge density fluctuations. Finite transparency of the p-n junctions is vital in establishing the macroscopic conductivity. We propose a random resistor network model to analyze scaling dependencies of the conductance on the doping and disorder, the quantum magnetoresistance and the corresponding dephasing rate.

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© 2007 The American Physical Society