Electrical-Controlled Transport for Surface States in a Dirac Semimetal Quantum Wire

被引：0
|
作者：
肖贤波 [1 ]
刘正方 [2 ]
何扬名 [1 ]
李会丽 [1 ]
艾国平 [1 ]
杜琰 [1 ]
机构：
[1] School of Computer Science,Jiangxi University of Traditional Chinese Medicine
[2] School of Basic Science,East China Jiaotong University
来源：
Chinese Physics Letters | 2015年 / 12期
基金：
中国国家自然科学基金;
关键词：
Electrical-Controlled Transport for Surface States in a Dirac Semimetal Quantum Wire; DSM;
D O I：
暂无
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The transport properties of a Dirac semimetal quantum wire with two side gates are theoreticaJJy studied by adopting the lattice Green function method.It is found that a residual conductance quantum contributed from the surface states can be switched on or off by tuning the electron energy or the side gates voltage.This ideal switching effect for the surface Dirac electron results from the transversal quantum confinement of the quantum wire in combination with the electrostatic potential induced by the side gates.These findings may provide useful guidance for designing all-electrical topological nanoelectronic devices.
引用
收藏
页码：121 / 124
页数：4
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