6 papers
Coexistence of topologically nontrivial and trivial insulating states in topological Anderson Chern insulator
Bo Yin, Yan Zhang, Anqi Wang +3
The interplay between disorder and topology has become a central theme in condensed matter physics. Disorder can not only destroy topological phases but also induce them, as exempl…
Three-dimensional topological ferroelectrics
Haohao Sheng, Sheng Zhang, Zhong Fang +2
Three-dimensional (3D) topological ferroelectric (FE) insulators, in which topological and FE orders naturally coexist, enable field-controlled spintronic devices. In this work, we…
Polarization-induced Quantum Spin Hall Insulator and Topological Devices in InAs Quantum Wells
Chenhao Liang, Sheng Zhang, Haohao Sheng +4
In this work, we predict the emergence of a quantum spin Hall insulator (QSHI) in conventional semiconductors, specifically InAs quantum wells, driven by a built-in polarization fi…
Evidence for Two-dimensional Weyl Fermions in Air-Stable Monolayer PtTe
Zhihao Cai, Haijun Cao, Haohao Sheng +14
The Weyl semimetals represent a distinct category of topological materials wherein the low-energy excitations appear as the long-sought Weyl fermions. Exotic transport and optical…
A numerical method for designing topological superconductivity induced by s-wave pairing
Jingnan Hu, Aiyun Luo, Zhijun Wang +3
Topological superconductors have garnered significant attention due to their potential for realizing topological quantum computation. However, a universal computational tool based…
Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer
Yupeng Li, Dayu Yan, Yu Hong +17
Edge states in topological systems have attracted great interest due to their robustness and linear dispersions. Here a superconducting-proximitized edge interferometer is engineer…