Experimental progress on layered topological semimetals

We review recent experimental progresses on layered topological materials, mainly focusing on transitional metal dichalcogenides with various lattice types including 1T, T d and 1T' structural phases. Their electronic quantum states are interestingly rich, and many appear to be topological nont...

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Bibliographic Details
Main Authors: Ma, Junchao, Deng, Ke, Zheng, Lu, Wu, Sanfeng, Liu, Zheng, Zhou, Shuyun, Sun, Dong
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/143250
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Institution: Nanyang Technological University
Language: English
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Summary:We review recent experimental progresses on layered topological materials, mainly focusing on transitional metal dichalcogenides with various lattice types including 1T, T d and 1T' structural phases. Their electronic quantum states are interestingly rich, and many appear to be topological nontrivial, such as Dirac/Weyl semimetallic phase in multilayers and quantum spin hall insulator phase in monolayers. The content covers recent major advances from material synthesis, basic characterizations, angle-resolved photoemission spectroscopy measurements, transport and optical responses. Following those, we outlook the exciting future possibilities enabled by the marriage of topological physics and two dimensional van der Waals layered heterostructures.