Transmission through a biased graphene bilayer barrier

被引:134
作者
Nilsson, Johan [1 ]
Castro Neto, A. H. [1 ]
Guinea, F. [2 ]
Peres, N. M. R. [3 ]
机构
[1] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[2] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain
[3] Univ Minho, Ctr Phys, Dept Fis, P-4710057 Braga, Portugal
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevB.76.165416
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We study the electronic transmission through a graphene bilayer in the presence of an applied bias between the layers. We consider different geometries involving interfaces between both a monolayer and a bilayer and between two bilayers. The applied bias opens a sizable gap in the spectrum inside the bilayer barrier region, thus leading to large changes in the transmission probability and electronic conductance that are controlled by the applied bias.
引用
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页数:10
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