Conductance quantization and snake states in graphene magnetic waveguides

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

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/155090

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0708.1876
 http://arxiv.org/abs/0708.1876
 Phys. Rev. B 77, 081404(R) (2008)
 doi:10.1103/PhysRevB.77.081404

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arXiv