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New Family of Robust 2D Topological Insulators in van der Waals Heterostructures
Liangzhi Kou, Shu-Chun Wu, Claudia Felser +3
We predict a new family of robust two-dimensional (2D) topological insulators in van der Waals heterostructures comprising graphene and chalcogenides BiTeX (X=Cl, Br and I). The la…
Theoretical search for half-Heusler topological insulators
Shi-Yuan Lin, Xiao-Bao Yang, Yu-Jun Zhao +3
We have performed ab-initio band structure calculations on more than two thousand half-Heusler compounds in order to search for new candidates for topological insulators. Herein, L…
Spin Texture and Mirror Chern number in Hg-Based Chalcogenides
Qingze Wang, Shu-chun Wu, Claudia Felser +2
The unique feature of surface states in topological insulators is the so-called "spin-momentum locking", which means that electron spin is oriented along a fixed direction for a gi…
Prediction of Near-Room-Temperature Quantum Anomalous Hall Effect on Honeycomb Materials
Shu-chun Wu, Guangcun Shan, Binghai Yan
Recently, this long-sought quantum anomalous Hall effect was realized in the magnetic topological insulator. However, the requirement of an extremely low temperature (approximately…
Ab initio study of topological surface states of strained HgTe
Shu-Chun Wu, Binghai Yan, Claudia Felser
The topological surface states of mercury telluride (HgTe) are studied by ab initio calculations assuming different strains and surface terminations. For the Te-terminated surface,…