654 citations · 2.1k across the 26 of their papers we have counts for
5 papers · 1 filter
Observation of a bulk 3D Dirac multiplet, Lifshitz transition, and nestled spin states in Na3Bi
Su-Yang Xu, Chang Liu, S. K. Kushwaha +20
Symmetry or topology protected Dirac fermion states in two and three dimensions constitute novel quantum systems that exhibit exotic physical phenomena. However, none of the studie…
Mapping the unconventional orbital texture in topological crystalline insulators
Ilija Zeljkovic, Yoshinori Okada, Cheng-Yi Huang +11
The newly discovered topological crystalline insulators (TCIs) harbor a complex band structure involving multiple Dirac cones. These materials are potentially highly tunable by ext…
Non-trivial spin-texture of the coaxial Dirac cones on the surface of topological crystalline insulator SnTe
Yung Jui Wang, Wei-Feng Tsai, Hsin Lin +4
We present first principles calculations of the nontrivial surface states and their spin-textures in the topological crystalline insulator SnTe. The surface state dispersion on the…
Gated Silicene as a tunable source of nearly 100% spin-polarized electrons
Wei-Feng Tsai, Cheng-Yi Huang, Tay-Rong Chang +3
Silicene is a one-atom-thick 2D crystal of silicon with a hexagonal lattice structure that is related to that of graphene but with atomic bonds that are buckled rather than flat. T…
Electron Delocalization in Gate-Tunable Gapless Silicene
Yan-Yang Zhang, Wei-Feng Tsai, Kai Chang +4
The application of a perpendicular electric field can drive silicene into a gapless state, characterized by two nearly fully spin-polarized Dirac cones owing to both relatively lar…