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Planar magnetic texture on the surface of a topological insulator
Zhaochen Liu, Jing Wang, Congjun Wu
We study the planar magnetic textures in an insulating magnetic film coupled to the Dirac surface state of a topological insulator. It is shown that the radial vortex with winding…
Dissipative Edge Transport in Disordered Axion Insulator Films
Zhaochen Liu, Dongheng Qian, Yadong Jiang +1
We investigate the role of disorder in the edge transport of axion insulator films. We predict by first-principles calculations that even-number-layer MnBiTe have gapped he…
Unoccupied Topological Surface State in MnBiTe
Yadong Jiang, Zhaochen Liu, Jing Wang
The unoccupied part of the band structure in the magnetic topological insulator MnBiTe is studied by first-principles calculations. We find a second, unoccupied topological…
Magnetic moiré surface states and flat chern band in topological insulators
Zhaochen Liu, Huan Wang, Jing Wang
We theoretically study the effect of magnetic moiré superlattice on the topological surface states by introducing a continuum model of Dirac electrons with a single Dirac cone movi…