Numerical study of quantum Hall effect in two-dimensional multi-band system: Single- and multi-layer graphene

被引：3

作者：

Arai, Masao ^{[1
]}

Hatsugai, Yasuhiro ^{[2
]}

机构：

[1] Natl Inst Mat Sci, Computat Mat Sci Ctr, Tsukuba, Ibaraki 3050044, Japan

[2] Univ Tsukuba, Dept Phys, Tsukuba, Ibaraki 3058571, Japan

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 04期

基金：

日本学术振兴会;

关键词：

Graphene; Quantum Hall effect; EDGE STATES; TOPOLOGICAL INVARIANT; CHERN NUMBERS; BERRYS PHASE; CONDUCTANCE;

D O I：

10.1016/j.physe.2009.11.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Chem numbers which correspond to quantized Hall conductance sigma(xy) were calculated for single- and bi-layer honeycomb lattices. The quantization of sigma(xy) occurs in entire energy range. Several large jumps of Chem numbers appear at van-Hove singularities of energy bands without magnetic fields. The plateaux of sigma(xy) are discussed from semi-classical quantization. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：740 / 743

页数：4

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