Coupling of Surface and Lowest Landau Level States in a Rectangular Graphene Dot

被引：4

作者：

Park, P. S. ^{[1
]}

Kim, S. C. ^{[1
]}

Yang, S. -R. Eric ^{[1
,2
]}

机构：

[1] Korea Univ, Dept Phys, Seoul 136713, South Korea

[2] Korea Inst Adv Study, Seoul 130722, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2011年 / 11卷 / 01期

关键词：

Graphene; Landau Level;

D O I：

10.1166/jnn.2011.3255

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A rectangular graphene dot with two zigzag edges and two armchair edges have electronic states in the presence of a magnetic field that are localized on the zigzag edges with non zero values of the wavefunction inside the dot. We have investigated the dependence of these wavefunctions on the size of the dot, and explain the physical origin of them in terms of surface and the lowest Landau level (LLL) states of infinitely long nanoribbons. We find that the armchair edges play a crucial role by coupling the surface and LLL states.

引用

页码：629 / 631

页数：3