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Dynamical Axion Field in a Magnetic Topological Insulator Superlattice
Jing Wang, Biao Lian, Shou-Cheng Zhang
We propose that the dynamical axion field can be realized in a magnetic topological insulator superlattice or a topological paramagnetic insulator. The magnetic fluctuations of the…
Edge State Induced Andreev Oscillation in Quantum Anomalous Hall Insulator-Superconductor Junctions
Biao Lian, Jing Wang, Shou-Cheng Zhang
We study the quantum Andreev oscillation induced by interference of the edge chiral Majorana fermions in junctions made of quantum anomalous Hall (QAH) insulators and superconducto…
Topological superconductivity on the surface of Fe-based superconductors
Gang Xu, Biao Lian, Peizhe Tang +2
As one of the simplest systems for realizing Majorana fermions, topological superconductor plays an important role in both condensed matter physics and quantum computations. Based…
Chiral topological superconductor and half-integer conductance plateau from quantum anomalous Hall plateau transition
Jing Wang, Quan Zhou, Biao Lian +1
We propose to realize a two-dimensional chiral topological superconducting (TSC) state from the quantum anomalous Hall plateau transition in a magnetic topological insulator thin f…
Intrinsic Quantum Anomalous Hall Effect in the Kagome Lattice Cs2LiMn3F12
Gang Xu, Biao Lian, Shou-Cheng Zhang
In a kagome lattice, the time reversal symmetry can be broken by a staggered magnetic flux emerging from ferromagnetic ordering and intrinsic spin-orbit coupling, leading to severa…
Quantized topological magnetoelectric effect of the zero-plateau quantum anomalous Hall state
Jing Wang, Biao Lian, Xiao-Liang Qi +1
Topological magnetoelectric effect in a three-dimensional topological insulator is a novel phenomenon, where an electric field induces a magnetic field in the same direction, with…