Conductance quantization and snake states in graphene magnetic waveguides

Ghosh, T. K., De Martino, A., Häusler, W., Dell'Anna, L. & Egger, R. (2008). Conductance quantization and snake states in graphene magnetic waveguides. Physical Review B (PRB), 77(8), doi: 10.1103/PhysRevB.77.081404

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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.

Item Type: Article
Additional Information: 5 pages, 4 figures, final version accepted as Rapid Comm. in PRB
Subjects: Q Science > QC Physics
Divisions: School of Engineering & Mathematical Sciences > Department of Mathematical Science
Related URLs:
URI: http://openaccess.city.ac.uk/id/eprint/1661

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