5 papers
A Catalogue of Topological Moiré Bands in Twisted Semiconductors
Jiaheng Li, Yan Zhang, Jiaxuan Liu +5
Twisted two-dimensional semiconductors provide a route to flat and topological moiré minibands, but systematic principles for organizing their material dependence have remained un…
A Geometric Design Principle for Topological Phases in Twisted Triangular-Lattice Bilayers
Jiaheng Li, Jiaxuan Liu, Yan Zhang +3
Twisted van der Waals bilayers provide a versatile platform for moiré electronic states, yet a transferable symmetry-based principle for time-reversal-invariant moi…
Ferroelectric switching of quantum anomalous Hall effects in MnBi2Te4 films
Jiaheng Li, Quansheng Wu, Hongming Weng
The integration of ferroelectric and topological materials offers a promising avenue for advancing the development of quantum material devices. In this work, we explore the strong…
High-Chern-number Quantum anomalous Hall insulators in mixing-stacked MnBiTe thin films
Jiaheng Li, Quansheng Wu, Hongming Weng
Quantum anomalous Hall (QAH) insulators are characterized by vanishing longitudinal resistance and quantized Hall resistance in the absence of an external magnetic field. Among the…
Stacking-dependent Electronic and Topological Properties in van der Waals Antiferromagnet MnBiTe Films
Jiaheng Li, Quansheng Wu, Hongming Weng
Combining first-principles calculations and tight-binding Hamiltonians, we study the stack-dependent behaviour of electronic and topological properties of layered antiferromagnet M…