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Chin. Phys. B, 2016, Vol. 25(11): 117201    DOI: 10.1088/1674-1056/25/11/117201
Special Issue: TOPICAL REVIEW — Topological electronic states
TOPICAL REVIEW—Topological electronic states Prev   Next  

Electron localization in ultrathin films of three-dimensional topological insulators

Jian Liao(廖剑), Gang Shi(史刚), Nan Liu(刘楠), Yongqing Li(李永庆)
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Abstract  

The recent discovery of three-dimensional (3D) topological insulators (TIs) has provided a fertile ground for obtaining further insights into electron localization in condensed matter systems. In the past few years, a tremendous amount of research effort has been devoted to investigate electron transport properties of 3D TIs and their low dimensional structures in a wide range of disorder strength, covering transport regimes from weak antilocalization to strong localization. The knowledge gained from these studies not only offers sensitive means to probe the surface states of 3D TIs but also forms a basis for exploring novel topological phases. In this article, we briefly review the main experimental progress in the study of the localization in 3D TIs, with a focus on the latest results on ultrathin TI films. Some new transport data will also be presented in order to complement those reported previously in the literature.

Keywords:  localization      topological insulator      metal-insulator transition      quantum transport     
Received:  18 March 2016      Published:  05 November 2016
PACS:  72.15.Rn (Localization effects (Anderson or weak localization))  
  73.20.Fz (Weak or Anderson localization)  
  73.25.+i (Surface conductivity and carrier phenomena)  
Fund: 

Project supported by the National Basic Research Program of China (Grant Nos. 2012CB921703 and 2015CB921102), the National Natural Science Foundation of China (Grant Nos. 61425015, 11374337, and 91121003), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB070202).

Corresponding Authors:  Yongqing Li     E-mail:  yqli@iphy.ac.cn

Cite this article: 

Jian Liao(廖剑), Gang Shi(史刚), Nan Liu(刘楠), Yongqing Li(李永庆) Electron localization in ultrathin films of three-dimensional topological insulators 2016 Chin. Phys. B 25 117201

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