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Topological insulators vs. topological Dirac semimetals in honeycomb compounds
Xiuwen Zhang, Qihang Liu, Qiunan Xu +2
Intriguing physical property of materials stems from their chemical constituent whereas the connection between them is often not clear. Here, we uncover a general chemical classifi…
The pseudo-Landau-level representation of twisted bilayer graphene: band topology and the implications on the correlated insulating phase
Jianpeng Liu, Junwei Liu, Xi Dai
We propose that the electronic structure of twisted bilayer graphene (TBG) can be understood as Dirac fermions coupled with opposite pseudo magnetic fields generated by the moiré p…
Quantum anomalous vortex and Majorana zero mode in iron-based superconductor Fe(Te,Se)
Kun Jiang, Xi Dai, Ziqiang Wang
In topological insulators doped with magnetic ions, spin-orbit coupling and ferromagnetism give rise to the quantum anomalous Hall effect. Here we show that in s-wave superconducto…
Symmetry Enforced Chiral Hinge States and Surface Quantum Anomalous Hall Effect in Magnetic Axion Insulator
Changming Yue, Yuanfeng Xu, Zhida Song +4
A universal mechanism to generate chiral hinge states in the ferromagnetic axion insulator phase is proposed, which leads to an exotic transport phenomena, the quantum anomalous Ha…
Probing Landau levels of strongly interacting massive Dirac electrons in layer-polarized MoS
Jiangxiazi Lin, Tianyi Han, Benjamin A. Piot +10
Monolayer transition metal dichalcogenides are recently emerged 2D electronic systems with various novel properties, such as spin-valley locking, circular dichroism, valley Hall ef…
Visualization of electronic topology in ZrSiSe by scanning tunneling microscopy
Kunliang Bu, Ying Fei, Wenhao Zhang +8
As emerging topological nodal-line semimetals, the family of ZrSiX (X = O, S, Se, Te) has attracted broad interests in condensed matter physics due to their future applications in…