686 citations · 6.4k across the 82 of their papers we have counts for
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Van der Waals Heterostructure PtHgSe/CrI for Topological Valleytronics
Zheng Liu, Yulei Han, Yafei Ren +2
We identify a valley-polarized Chern insulator in the van der Waals heterostructure, PtHgSe/CrI, for potential applications with interplay between electric, magneti…
Quantum Phases of Kagome Electron System with Half-Filled Flat Bands
Yafei Ren, Hong-Chen Jiang, Zhenhua Qiao +1
We study the quantum phase diagram of spinful fermions on kagome lattice with half-filled lowest flat bands. To understand the competition between magnetism, flat band frustration,…
Valley-Current Splitter in Minimally Twisted Bilayer Graphene
Tao Hou, Yafei Ren, Yujie Quan +3
We study the electronic transport properties at the intersection of three topological zero-lines as the elementary current partition node that arises in minimally twisted bilayer g…
Berry-Curvature Exchange Induced Anderson Localization in Large-Chern-Number Quantum Anomalous Hall Effect
Hui Yang, Junjie Zeng, Yulei Han +1
We theoretically investigate the localization mechanism of quantum anomalous Hall Effect (QAHE) with large Chern numbers in bilayer graphene and magnetic topological…
Engineering Corner States from Two-Dimensional Topological Insulators
Yafei Ren, Zhenhua Qiao, Qian Niu
We theoretically demonstrate that the second-order topological insulator with robust corner states can be realized in two-dimensional topological insulators by apply…
Approaching Three-Dimensional Quantum Hall effect in Bulk HfTe5
Pang Wang, Yafei Ren, Fangdong Tang +5
The discovery of quantum Hall effect in two-dimensional (2D) electronic systems inspired the topological classifications of electronic systems1,2. By stacking 2D quantum Hall effec…