Higher-order topology, monopole nodal lines, and the origin of large Fermi arcs in transition metal dichalcogenides XTe2 (X=Mo,W)

In recent years, transition metal dichalcogenides (TMDs) have garnered great interest as topological materials. In particular, monolayers of centrosymmetric β-phase TMDs have been identified as 2D topological insulators (TIs), and bulk crystals of noncentrosymmetric γ-phase MoTe2 and WTe2 have been...

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Bibliographic Details
Published in:Physical review letters 2019-10, Vol.123 (18), Article 186401
Main Authors: Wang, Zhijun, Wieder, Benjamin J., Li, Jian, Yan, Binghai, Bernevig, B. Andrei
Format: Article
Language:English
Subjects:
Beta phase
Chalcogenides
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Electronic structure
First principles
Lattice vibration
Mathematical analysis
Metalloids
Molybdenum compounds
Monopoles
Photoelectric emission
Physics
Spin-orbit interactions
Symmetry
Tellurides
Topological insulators
Topology
Transition metal compounds
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