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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…
Band gap anomaly and topological properties in lead chalcogenides
Simin Nie, Xiao Yan Xu, Gang Xu +1
Band gap anomaly is a well-known issue in lead chalcogenides PbX (X=S, Se, Te, Po). Combining ab initio calculations and tight-binding (TB) method, we have studied the band evoluti…
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…
Topological nature of FeSeTe superconductor
Zhijun Wang, P. Zhang, Gang Xu +10
We demonstrate, using first-principles calculations, that the electronic structure of FeSeTe (=0.5) is topologically non-trivial, characterized by an odd $\mathbb…
Pressure induced metallization with absence of structural transition in layered MoSe2
Zhao Zhao, Haijun Zhang, Hongtao Yuan +10
Layered transition-metal dichalcogenides have emerged as exciting material systems with atomically thin geometries and unique electronic properties. Pressure is a powerful tool for…