Article ID Journal Published Year Pages File Type
1545791 Physica E: Low-dimensional Systems and Nanostructures 2010 4 Pages PDF
Abstract

The Chern numbers which correspond to quantized Hall conductance σxyσxy were calculated for single- and bi-layer honeycomb lattices. The quantization of σxyσxy occurs in entire energy range. Several large jumps of Chern numbers appear at van-Hove singularities of energy bands without magnetic fields. The plateaux of σxyσxy are discussed from semi-classical quantization.

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Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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Numerical study of quantum Hall effect in two-dimensional multi-band system: Single- and multi-layer graphene
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