5 papers
Two-dimensional multiferroic metal with voltage-tunable magnetization and metallicity
Xu Duan, Jiawei Huang, Bin Xu +1
We design a multiferroic metal that combines seemingly incompatible ferromagnetism, ferroelectricity, and metallicity by hole doping a two-dimensional (2D) ferroelectric with high…
On-demand quantum spin Hall insulators controlled by two-dimensional ferroelectricity
Jiawei Huang, Xu Duan, Sunam Jeon +4
The coexistence of ferroelectric and topological orders in two-dimensional (2D) atomic crystals allows non-volatile and switchable quantum spin Hall states. Here we offer a general…
Designing Xenes with Two-Dimensional Triangular Lattice
Xu Duan, Zhao Liu, Brendan M. Hanrahan +2
Xenes, graphene-like two-dimensional (2D) monoelemental crystals with a honeycomb symmetry, have been the focus of numerous experimental and theoretical studies. In comparison, sin…
Coexistence of nontrivial topological properties and strong ferromagnetic fluctuations in CrAs (=Na, K, Rb and Cs)
Chenchao Xu, Ninghua Wu, Guo-Xiang Zhi +5
Superconductivity in crystals without inversion symmetry has received extensive attention due to its unconventional pairing and possible nontrivial topological properties. Using fi…
Tunable Electronic Structure and Topological Properties of (=Ce, Pr, Gd, Sm, Yb; =Sb, Bi)
Xu Duan, Fan Wu, Jia Chen +4
We have performed systematic first principles study of the electronic structure and band topology properties of compounds (=Ce, Pr, Gd, Sm, Yb; =Sb, Bi). Assuming th…