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Half-Heusler Topological Insulators: A First-Principle Study with the Tran-Blaha Modified Becke-Johnson Density Functional
Wanxiang Feng, Di Xiao, Ying Zhang +1
We systematically investigate the topological band structures of half-Heusler compounds using first-principles calculations. The modified Becke-Johnson exchange potential together…
Half-Heusler Compounds as a New Class of Three-Dimensional Topological Insulators
Di Xiao, Yugui Yao, Wanxiang Feng +5
Using first-principles calculations within density functional theory, we explore the feasibility of converting ternary half-Heusler compounds into a new class of three-dimensional…
Three-Dimensional Topological Insulators in I-III-VI and II-IV-V Chalcopyrite Semiconductors
Wanxiang Feng, Jun Ding, Di Xiao +1
The recent discovery of topological insulators with exotic metallic surface states has garnered great interest in the fields of condensed matter physics and materials science. A nu…
Quantum Anomalous Hall Effect in Graphene from Rashba and Exchange Effects
Zhenhua Qiao, Shengyuan A. Yang, Wanxiang Feng +5
We investigate the possibility of realizing quantum anomalous Hall effect in graphene. We show that a bulk energy gap can be opened in the presence of both Rashba spin-orbit coupli…