On the Quantum Spin Hall Gap of Monolayer 1T'-WTe sub(2)

Positive quantum spin Hall gap in mono-layer 1T'-WTe sub(2) is consistently supported by density-functional theory calculations, ultrafast pump-probe, and electrical transport measurements. It is argued that monolayer 1T'-WTe sub(2), which was predicted to be a semimetallic quantum spin Ha...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2016-06, Vol.28 (24), p.4845-4851
Main Authors: Zheng, Feipeng, Cai, Chaoyi, Ge, Shaofeng, Zhang, Xuefeng, Liu, Xin, Lu, Hong, Zhang, Yudao, Qiu, Jun, Taniguchi, Takashi, Watanabe, Kenji, Jia, Shuang, Qi, Jingshan, Chen, Jian-Hao, Sun, Dong, Feng, Ji
Format: Article
Language:English
Subjects:
Insulators
Mathematical analysis
Monolayers
Transport
Two dimensional
Online Access:Get full text
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Summary:Positive quantum spin Hall gap in mono-layer 1T'-WTe sub(2) is consistently supported by density-functional theory calculations, ultrafast pump-probe, and electrical transport measurements. It is argued that monolayer 1T'-WTe sub(2), which was predicted to be a semimetallic quantum spin Hall material, is likely a truly 2D quantum spin Hall insulator with a positive quantum spin Hall gap.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201600100