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The Coexistence of Superconductivity and Topological Order in the Bi2Se3 Thin Films
Mei-Xiao Wang, Canhua Liu, Jin-Peng Xu +13
This paper has been withdrawn by the author due to journal requirement.
Actinide Topological Insulator Materials with Strong Interaction
Xiao Zhang, Haijun Zhang, Claudia Felser +1
Topological band insulators have recently been discovered in spin-orbit coupled two and three dimensional systems. In this work, we theoretically predict a class of topological Mot…
Models of three-dimensional fractional topological insulators
Joseph Maciejko, Xiao-Liang Qi, Andreas Karch +1
Time-reversal invariant three-dimensional topological insulators can be defined fundamentally by a topological field theory with a quantized axion angle theta of zero or pi. It was…
Half quantum spin Hall effect on the surface of weak topological insulators
Chao-Xing Liu, Xiao-Liang Qi, Shou-Cheng Zhang
We investigate interaction effects in three dimensional weak topological insulators (TI) with an even number of Dirac cones on the surface. We find that the surface states can be g…
Anomalous Electron Trajectory in Topological Insulators
Li-kun Shi, Shou-cheng Zhang, Kai Chang
We present a general theory about electron orbital motions in topological insulators. An in-plane electric field drives spin-up and spin-down electrons bending to opposite directio…
Quantum Anomalous Hall Effect in Magnetic Topological Insulator GdBiTe3
Hai-Jun Zhang, Xiao Zhang, Shou-Cheng Zhang
The quantum anomalous Hall (QAH) state is a two-dimensional bulk insulator with a non-zero Chern number in absence of external magnetic fields. Protected gapless chiral edge states…
Carrier-independent ferromagnetism and giant anomalous Hall effect in magnetic topological insulator
Cui-Zu Chang, Jin-Song Zhang, Min-Hao Liu +13
Breaking the time-reversal symmetry of a topological insulator (TI) by ferromagnetism can induce exotic magnetoelectric phenomena such as quantized anomalous Hall (QAH) effect. Exp…
Spin polarization of the quantum spin Hall edge states
Christoph Brüne, Andreas Roth, Hartmut Buhmann +5
While the helical character of the edge channels responsible for charge transport in the quantum spin Hall regime of a two-dimensional topological insulator is by now well establis…
Mechanism for a Pairing State with Time-Reversal Symmetry Breaking in Iron-Based Superconductors
Christian Platt, Ronny Thomale, Carsten Honerkamp +2
The multipocket Fermi surfaces of iron-based superconductors promote pairing states with both s_{+-}-wave and d_{x^2-y^2}-wave symmetry. We argue that the competition between these…
Topological insulators in filled skutterudites
Binghai Yan, Lukas Müchler, Xiao-Liang Qi +2
We propose new topological insulators in cerium filled skutterudite (FS) compounds based on ab initio calculations. We find that two compounds CeOs4As12 and CeOs4Sb12 are zero gap…
Half-metallic Surface States and Topological Superconductivity in NaCoO from first principles
Hongming Weng, Gang Xu, Haijun Zhang +3
Based on first-principles calculations, we predict a half-metallic surface state in layered bulk insulator NaCoO2, with tunable surface hole concentration. The half-metallic surfac…
Topological insulators for high performance terahertz to infrared applications
Xiao Zhang, Jing Wang, Shou-Cheng Zhang
Topological insulators in the Bi2Se3 family have an energy gap in the bulk and a gapless surface state consisting of a single Dirac cone. Low frequency optical absorption due to th…
Generalized quantization condition in topological insulator
Yuanpei Lan, Shaolong Wan, Shou-Cheng Zhang
The topological magnetoelectric effect (TME) is the fundamental quantization effect for topological insulators in units of the fine structure constant . In [Phys. Rev. Lett. 105…