Rights statement: © 2007 The American Physical Society
Final published version, 278 KB, PDF document
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 176801 |
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<mark>Journal publication date</mark> | 26/10/2007 |
<mark>Journal</mark> | Physical review letters |
Issue number | 17 |
Volume | 99 |
Number of pages | 4 |
Publication Status | Published |
<mark>Original language</mark> | English |
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.