Silicene on substrates: A theoretical perspective

doi:10.1088/1674-1056/24/8/087308

Abstract

Silicene, as the silicon analog of graphene, is successfully fabricated by epitaxially growing it on various substrates. Like free-standing graphene, free-standing silicene possesses a honeycomb structure and Dirac-cone-shaped energy band, resulting in many fascinating properties such as high carrier mobility, quantum spin Hall effect, quantum anomalous Hall effect, and quantum valley Hall effect. The existence of the honeycomb crystal structure and the Dirac cone of silicene is crucial for observation of its intrinsic properties. In this review, we systematically discuss the substrate effects on the atomic structure and electronic properties of silicene from a theoretical point of view, especially with emphasis on the changes of the Dirac cone.

Keywords: silicene dirac cone substrate effects

Received: 09 June 2015
Revised: 02 July 2015
Accepted manuscript online:

PACS:	73.20.-r	(Electron states at surfaces and interfaces)
	73.40.Ns	(Metal-nonmetal contacts)
	68.35.Ct	(Interface structure and roughness)

Fund:

Project supported by the National Natural Science Foundation of China (Grant Nos. 11274016 and 11474012) and the National Basic Research Program of China (Grant Nos. 2013CB932604 and 2012CB619304).

Corresponding Authors: Lü Jin
E-mail: jinglu@pku.edu.cn

Cite this article:

Zhong Hong-Xia (钟红霞), Quhe Ru-Ge (屈贺如歌), Wang Yang-Yang (王洋洋), Shi Jun-Jie (史俊杰), Lü Jin (吕劲) Silicene on substrates: A theoretical perspective 2015 Chin. Phys. B 24 087308

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Silicene on substrates: A theoretical perspective

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