Landau quantization of Dirac fermions in graphene and its multilayers

Long Jing Yin, Ke Ke Bai, Wen Xiao Wang, Si Yu Li, Yu Zhang, Lin He*

*此作品的通讯作者

科研成果: 期刊稿件文献综述同行评审

54 引用 (Scopus)

摘要

When electrons are confined in a two-dimensional (2D) system, typical quantum–mechanical phenomena such as Landau quantization can be detected. Graphene systems, including the single atomic layer and few-layer stacked crystals, are ideal 2D materials for studying a variety of quantum–mechanical problems. In this article, we review the experimental progress in the unusual Landau quantized behaviors of Dirac fermions in monolayer and multilayer graphene by using scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS). Through STS measurement of the strong magnetic fields, distinct Landau-level spectra and rich level-splitting phenomena are observed in different graphene layers. These unique properties provide an effective method for identifying the number of layers, as well as the stacking orders, and investigating the fundamentally physical phenomena of graphene. Moreover, in the presence of a strain and charged defects, the Landau quantization of graphene can be significantly modified, leading to unusual spectroscopic and electronic properties.

源语言英语
文章编号127208
期刊Frontiers of Physics
12
4
DOI
出版状态已出版 - 1 8月 2017
已对外发布

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