Random resistor network model of minimal conductivity in graphene.
نویسندگان
چکیده
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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عنوان ژورنال:
- Physical review letters
دوره 99 17 شماره
صفحات -
تاریخ انتشار 2007