5 papers
Scattering-Induced Magnon Layer-Hall Transport beyond Band Geometry
Zhiping Xue, Zhoujian Sun, Xiyin Ye +2
The layer Hall effect has been exclusively attributed to layer-locked Berry curvature, posing a fundamental barrier to its realization in conventional magnets. Here we report a fun…
Anisotropic Surface Spin Waves as Signature of A-type Altermagnets
Zhoujian Sun, Yiyuan Chen, Tao Yu +2
Altermagnets have attracted intense interest because they have the advantages of both ferromagnets and antiferromagnets. However, their experimental identification remains challeng…
Exchange Surface Spin Waves in Type-A van der Waals Antiferromagnets
Zhoujian Sun, Fuxiang Li, Gerrit E. W. Bauer +1
Surface spin waves in the short-wavelength regime enable ultrafast, nanoscale magnon-based devices. Here we report the emergence of surface spin-wave excitations within the bulk ma…
Kibble-Zurek Behavior in the Boundary-obstructed Phase Transitions
Menghua Deng, Zhoujian Sun, Fuxiang Li
We study the nonadiabatic dynamics of a two-dimensional higher-order topological insulator when the system is slowly quenched across the boundary-obstructed phase transition, which…
Universal scalefree non-Hermitian skin effect near the Bloch point
Wei Li, Zhoujian Sun, Ze Yang +1
The scalefree non-Hermitian skin effect (NHSE) refers to the phenomenon that the localization length of skin modes scales proportionally with system size in non-Hermitian systems.…