Observation of Emergent Dirac Physics at the Surfaces of Acoustic Higher‐Order Topological Insulators

Observation of Emergent Dirac Physics at the Surfaces of Acoustic Higher‐Order Topological Insulators

Abstract Using 3D sonic crystals as acoustic higher‐order topological insulators (HOTIs), 2D surface states described by spin‐1 Dirac equations at the interfaces between the two sonic crystals with distinct topology but the same crystalline symmetry are discovered. It is found that the Dirac mass ca...

Full description

Bibliographic Details
Main Authors: Fei Meng, Zhi‐Kang Lin, Weibai Li, Peiguang Yan, Yun Zheng, Xinping Li, Jian‐Hua Jiang, Baohua Jia, Xiaodong Huang
Format: Article
Language:English
Published: Wiley 2022-08-01
Series:Advanced Science
Subjects:
acoustic high‐order topological insulator
Dirac mass
hinge state
surface state
zero refractive index
Online Access:https://doi.org/10.1002/advs.202201568

Internet

https://doi.org/10.1002/advs.202201568

Similar Items