Conductance quantization and snake states in graphene magnetic waveguides

Details Conductance quantization and snake states in graphene magnetic waveguides Conductance quantization and snake states in graphene magnetic waveguides

2007-08-14

arxiv.org/abs/0708.1876v2

Phys. Rev. B 77, 081404(R) (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures, final version accepted as Rapid Comm. in PRB

Scientific paper

10.1103/PhysRevB.77.081404

We consider electron waveguides (quantum wires) in graphene created by suitable inhomogeneous magnetic fields. The properties of uni-directional snake states are discussed. For a certain magnetic field profile, two spatially separated counter-propagating snake states are formed, leading to conductance quantization insensitive to backscattering by impurities or irregularities of the magnetic field.

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