期刊
PHYSICA B-CONDENSED MATTER
卷 406, 期 22, 页码 4214-4220出版社
ELSEVIER
DOI: 10.1016/j.physb.2011.08.010
关键词
Ballistic transport; Relativistic wave equations; Graphene
资金
- National Natural Science Foundation of China [10174024, 10474025]
We study magnetic field modulated transport properties of Dirac fermions in graphene, where Dirac fermions penetrate through a velocity barrier. We find strong wave vector filtering and resonant effect. The angular-dependent region of resonant tunneling is suppressed by tuning velocity barriers. We can also found that the confined states in this velocity barrier can be changed by the magnetic field. Various novel devices, such as wavevector filter and magnetic switches, may be constructed based on our observed phenomena. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
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