Electronic band gap and transport in Fibonacci quasi-periodic graphene superlattice

被引:71
作者
Zhao, Pei-Liang [1 ]
Chen, Xi [1 ,2 ]
机构
[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China
[2] Univ Basque Country, Dept Quim Fis, E-48080 Bilbao, Spain
关键词
D O I
10.1063/1.3658394
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigate electronic band gap and transport in Fibonacci quasi-periodic graphene superlattice. It is found that such structure can possess a zero-(k) over bar gap which exists in all Fibonacci sequences. Different from Bragg gap, zero-(k) over bar gap associated with Dirac point is less sensitive to the incidence angle and lattice constants. The defect mode appeared inside the zero-(k) over bar gap has a great effect on transmission, conductance, and shot noise, which can be applicable to control the electron transport. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3658394]
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页数:3
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