Graphene n-p junction in a strong magnetic field: a semiclassical study
arXiv:1003.2983 · doi:10.1103/PhysRevB.81.241406
Abstract
We provide a semiclassical description of the electronic transport through graphene n-p junctions in the quantum Hall regime. A semiclassical approximation for the conductance is derived in terms of the various snake-like trajectories at the interface of the junction. For a symmetric (ambipolar) configuration, the general result can be recovered by means of a simple scattering approach, providing a very transparent qualitative description of the problem under study. Consequences of our findings for the understanding of recent experiments are discussed.
10 pages, 2 figures
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