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Above 400 K Robust Perpendicular Ferromagnetic Phase in a Topological Insulator
Chi Tang, Cui-Zu Chang, Gejian Zhao +8
The quantum anomalous Hall effect (QAHE) that emerges under broken time-reversal symmetry in topological insulators (TI) exhibits many fascinating physical properties for potential…
Helicity dependent photocurrent in electrically gated (Bi,Sb)_2Te_3 thin films
Yu Pan, Qing-Ze Wang, Andrew L. Yeats +7
Circularly polarized photons are known to generate a directional helicity-dependent photocurrent in three-dimensional topological insulators at room temperature. Surprisingly, the…
Prediction of triple point fermions in simple half-Heusler topological insulators
Hao Yang, Jiabin Yu, Stuart S. P. Parkin +3
We predict the existence of triple point fermions in the band structure of several half-Heusler topological insulators by calculations and the Kane model. We find that…
Model Hamiltonian and Time Reversal Breaking Topological Phases of Anti-ferromagnetic Half-Heusler Materials
Jiabin Yu, Binghai Yan, Chao-Xing Liu
In this work, we construct a generalized Kane model with a new coupling term between itinerant electron spins and local magnetic moments of anti-ferromagnetic ordering in order to…
Dirac nodal lines and induced spin Hall effect in metallic rutile oxides
Yan Sun, Yang Zhang, Chao-Xing Liu +2
We have found Dirac nodal lines (DNLs) in the band structures of metallic rutile oxides IrO, OsO, and RuO and revealed a large spin Hall conductivity contributed by the…