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Conductance quantization and snake states in graphene magnetic waveguides

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

Publication Type: Article
Additional Information: 5 pages, 4 figures, final version accepted as Rapid Comm. in PRB
Subjects: Q Science > QC Physics
Departments: School of Mathematics, Computer Science & Engineering > Mathematics
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Date available in CRO: 03 Oct 2012 12:42
Date of first online publication: August 2008
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