中国物理B ›› 2015, Vol. 24 ›› Issue (8): 87308-087308.doi: 10.1088/1674-1056/24/8/087308

所属专题: TOPICAL REVIEW — Silicene

• TOPICAL REVIEW—Silicene • 上一篇    下一篇

Silicene on substrates: A theoretical perspective

钟红霞a c, 屈贺如歌a d e f, 王洋洋a g, 史俊杰a, 吕劲a b   

  1. a State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871, China;
    b Collaborative Innovation Center of Quantum Matter, Beijing 100871, China;
    c Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, USA;
    d Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China;
    e State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    f School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    g Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 收稿日期:2015-06-09 修回日期:2015-07-02 出版日期:2015-08-05 发布日期:2015-08-05
  • 基金资助:

    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).

Silicene on substrates: A theoretical perspective

Zhong Hong-Xia (钟红霞)a c, Quhe Ru-Ge (屈贺如歌)a d e f, Wang Yang-Yang (王洋洋)a g, Shi Jun-Jie (史俊杰)a, Lü Jin (吕劲)a b   

  1. a State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871, China;
    b Collaborative Innovation Center of Quantum Matter, Beijing 100871, China;
    c Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, USA;
    d Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China;
    e State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    f School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    g Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • Received:2015-06-09 Revised:2015-07-02 Online:2015-08-05 Published:2015-08-05
  • Contact: Lü Jin E-mail:jinglu@pku.edu.cn
  • Supported by:

    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).

摘要:

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.

关键词: silicene, dirac cone, substrate effects

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.

Key words: silicene, dirac cone, substrate effects

中图分类号:  (Electron states at surfaces and interfaces)

  • 73.20.-r
73.40.Ns (Metal-nonmetal contacts) 68.35.Ct (Interface structure and roughness)