4 papers
Hybrid-order topology in two-dimensional nonsymmorphic antiferromagnets
Wei Xiong, Zi-Ming Wang, Xin-Mei Wei +2
We theoretically demonstrate hybrid-order topology in a two-dimensional nonsymmorphic antiferromagnet. Utilizing a generic antiferromagnetic Dirac model with a symmetry-allowed, mo…
Floquet second-order topological insulator in strained graphene
Yu-Wen Xu, Xiaolin Wan, Zi-Ming Wang +2
Graphene provides a canonical setting for Floquet band engineering, where circularly polarized light can dynamically open topological gaps at Dirac points and generate nonequilibri…
Spin-Orbital Altermagnetism
Zi-Ming Wang, Yang Zhang, Song-Bo Zhang +4
Altermagnet is a newly discovered magnetic phase, characterized by non-relativistic spin-splitting that has been experimentally observed. Here, we introduce a framework dubbed {\it…
Engineering Helical Superconductors with Multiple Majorana Kramers Pairs via Higher-Order Rashba Spin-Orbit Coupling
Qi-Sheng Xu, Zi-Ming Wang, Chui-Zhen Chen +3
The momentum dependence of Rashba spin-orbit coupling (RSOC) is a key ingredient for engineering topological superconductors (TSCs), yet research has overwhelmingly focused on its…