Aharonov-Bohm effect in bilayer graphene

被引：2
|
作者：
Park, Chang -Soo [1 ]
机构：
[1] Dankook Univ, Dept Phys, Cheonan 330714, South Korea
来源：
PHYSICS LETTERS A | 2017年 / 381卷 / 21期
关键词：
Aharonov-Bohm effect; Trigonal warping; Bilayer graphene; MAGNETIC-FIELD; OSCILLATIONS; RINGS;
D O I：
10.1016/j.physleta.2017.03.043
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate Aharonov-Bohm effect in bilayer graphene. We consider a setup of n-p(n')-n junction with Aharonov-Bohm loop connected in the transmission region. In the presence of trigonal warping we show that, due to the anisotropic dispersion of eigenspectrum, the Aharonov-Bohm interference depends on the geometry of junction: it exists for armchair interface but vanishes for zigzag interface. For the armchair interface, it is demonstrated that the period of Aharonov-Bohm oscillation is Phi(0) = h/e and the amplitude of oscillation can be varied with incident energy and the barrier height of the junction. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：1831 / 1836
页数：6
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