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Synthesis of Meta Symmetric 1T ’‐ WTe 2 Using an Edge‐Induced Mechanism
Author(s) -
Xiao Yao,
Zhou Mengyue,
Liu Jinglu,
Wei Bin,
Yue Shuanglin,
Zhou Yuan,
Yang Kena,
Zhang Tao,
Zeng Mengqi,
Wang Zhongchang,
Fu Lei
Publication year - 2020
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.202000079
Subject(s) - chemistry , symmetry (geometry) , lattice (music) , enhanced data rates for gsm evolution , geometry , physics , telecommunications , computer science , mathematics , acoustics
Summary of main observation and conclusion Lattice symmetry is vital to the properties of two‐dimensional (2D) materials, yet their fixed symmetry cannot meet the increasing requirements in highly efficient and programmable electrical transport. If the structural diversity of 2D materials, as demonstrated by 1T’‐WTe 2 , is improved without any phase transition or structural reconstruction, excellent metallic 1T’‐WTe 2 would be possibly used for integrated devices. Here, we realized meta symmetry of 1T’‐WTe 2 by using an edge‐induced mechanism, which is recognized as the combination of the intrinsic C 2v symmetry and sixfold axes. On account of the dynamically controlled growth, the meta symmetric 1T’‐WTe 2 with ~94.9% purity is obtained for the first time. Meta symmetry will also keep the intrinsic electrical properties of 1T’‐WTe 2 over the node. Such meta symmetry could not only enrich the structural diversity of 1T’‐WTe 2 , but also be extended to other low‐symmetry 2D materials, which would be promising for customized circuits and devices.