Gate-controlled conductance through bilayer graphene ribbons

This work was partially supported by MEC-Spain under Grant No. FIS2009-08744 and by the CSIC/CONICYT program, Grant No. 2009CL0054. J.W.G. gratefully acknowledges helpful discussions with M. Pacheco, the ICMM-CSIC for their hospitality, and the financial support of MECESUP research internship program,CONICYT (CENAVA,Grant No. ACT27), and USM 110856 internal grant

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