Conductance quantization and snake states in graphene magnetic waveguides

被引：104
|
作者：
Ghosh, T. K. [1 ]
De Martino, A. [1 ]
Haeusler, W. [1 ]
Dell'Anna, L. [1 ]
Egger, R.
机构：
[1] Univ Dusseldorf, Inst Theoret Phys, D-40225 Dusseldorf, Germany
来源：
PHYSICAL REVIEW B | 2008年 / 77卷 / 08期
关键词：
D O I：
10.1103/PhysRevB.77.081404
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We consider electron waveguides (quantum wires) in graphene created by suitable inhomogeneous magnetic fields. The properties of unidirectional snake states are discussed. For a certain magnetic field profile, two spatially separated counterpropagating snake states are formed, leading to conductance quantization insensitive to backscattering by impurities or irregularities of the magnetic field.
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页数：4
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