Local gating of a graphene Hall bar by graphene side gates

Details Local gating of a graphene Hall bar by graphene side gates Local gating of a graphene Hall bar by graphene side gates

2007-09-19

arxiv.org/abs/0709.2970v1

Phys. Rev. B 76, 245426 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.76.245426

We have investigated the magnetotransport properties of a single-layer graphene Hall bar with additional graphene side gates. The side gating in the absence of a magnetic field can be modeled by considering two parallel conducting channels within the Hall bar. This results in an average penetration depth of the side gate created field of approx. 90 nm. The side gates are also effective in the quantum Hall regime, and allow to modify the longitudinal and Hall resistances.

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