Manifesting pseudo-spin polarization of graphene with field emission image

被引：10
作者：
Chen, Jingkun [1 ]
Li, Zhibing [1 ]
Wang, Weiliang [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 05期
基金：
中国国家自然科学基金;
关键词：
SINGLE-LAYER GRAPHENE; ELECTRON-EMISSION;
D O I：
10.1063/1.4863726
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Coherent emission of electron from graphene in both electric and magnetic fields is studied. We obtain the emission wave function analytically. The emission current density is calculated. The structure of Landau levels is recognizable in the emission image. The emission pattern depends on the phase difference of two sub-lattices. We find that the pattern changes obviously with the gate voltage on the edge. It provides a way to manipulate the emission pattern. (C) 2014 AIP Publishing LLC.
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页数：4
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