Journal
ADVANCED MATERIALS
Volume 28, Issue 24, Pages 4845-4851Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201600100
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Funding
- National Basic Research Program of China [2013CB921900, 2012CB921300, 2014CB920900]
- National Natural Science Foundation of China (NSFC) [11174009, 11274015, 11374021]
- Recruitment Program of Global Experts
- Beijing Natural Science Foundation [4142024]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120001110066]
- Elemental Strategy Initiative
- JSPS
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Positive quantum spin Hall gap in monolayer 1T'-WTe2 is consistently supported by density-functional theory calculations, ultrafast pump-probe, and electrical transport measurements. It is argued that monolayer 1T'-WTe2, 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.
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