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arXiv · 0708.1876

Conductance quantization and snake states in graphene magnetic waveguides

T. K. Ghosh·A. De Martino·W. Häusler·L. Dell'Anna·R. Egger
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Abstract

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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T. K. Ghosh, A. De Martino, W. Häusler, L. Dell'Anna, R. Egger. 2008-01-07. Conductance quantization and snake states in graphene magnetic waveguides. https://doi.org/10.1103/physrevb.77.081404

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