Remarkable enhancement of terahertz conductivity of graphene tuned by periodic gate voltage

被引：5
|
作者：
Jiang, Liwei [1 ]
Zheng, Yisong [1 ]
机构：
[1] Jilin Univ, Dept Phys, Natl Lab Superhard Mat, Changchun 130023, Peoples R China
来源：
PHYSICS LETTERS A | 2010年 / 375卷 / 02期
关键词：
Optical conductivity; Superlattice; Graphene;
D O I：
10.1016/j.physleta.2010.10.055
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Optical conductivity of a graphene sheet subject to a one-dimensional cosinusoidal potential is studied. We find that the optical conductivity can be tuned by the strength of the superlattice potential. When this strength is within a certain range the terahertz conductivity can be enhanced by two orders of magnitude. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：203 / 207
页数：5
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