196 citations · 744 across the 20 of their papers we have counts for
6 papers · 1 filter
Topological phenomena at topological defects
Zhi-Kang Lin, Qiang Wang, Yang Liu +4
There are two prominent applications of the mathematical concept of topology to the physics of materials: band topology, which classifies different topological insulators and semim…
Hybrid topological photonic crystals
Yanan Wang, Hai-Xiao Wang, Li Liang +8
Photonic topological phases offering unprecedented manipulation of electromagnetic waves have attracted much research interest which, however, have been mostly restricted to a sing…
Observation of fractal topological states in acoustic metamaterials
Shengjie Zheng, Xianfeng Man, Ze-Lin Kong +6
Topological phases of matter have been extensively investigated in solid state materials and classical wave systems with integer dimensions. However, topological states in non-inte…
Observation of an acoustic topological Euler insulator with meronic waves
Bin Jiang, Adrien Bouhon, Shi-Qiao Wu +4
Topological band theory has conventionally been concerned with the topology of bands around a single gap. Only recently non-Abelian {topologies that thrive on involving multiple ga…
Observation of emergent Dirac physics at the surfaces of acoustic higher-order topological insulators
Fei Meng, Zhi-Kang Lin, Weibai Li +5
Using three-dimensional (3D) sonic crystals as acoustic higher-order topological insulators (HOTIs), we discover two-dimensional (2D) surface states described by spin-1 Dirac equat…
p-orbital disclination states in non-Euclidean geometries
Ying Chen, Yuhang Yin, Ze-Huan Zheng +5
Disclinations are ubiquitous lattice defects existing in almost all crystalline materials. In two-dimensional nanomaterials, disclinations lead to the warping and deformation of th…