title: Random resistor network model of minimal conductivity in graphene.
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.
authors.affiliation: Physics Department, Lancaster University, Lancaster, LA1 4YB, United Kingdom.
authors.forename: Vadim V
authors.initials: VV
authors.lastname: Cheianov
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Fal'ko
authors.forename: Boris L
authors.initials: BL
authors.lastname: Altshuler
authors.forename: Igor L
authors.initials: IL
authors.lastname: Aleiner