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...

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Bibliografski detalji

Glavni autori:	Fei Meng, Zhi‐Kang Lin, Weibai Li, Peiguang Yan, Yun Zheng, Xinping Li, Jian‐Hua Jiang, Baohua Jia, Xiaodong Huang
Format:	Artigo
Jezik:	Inglês
Izdano:	Wiley 2022-08-01
Serija:	Advanced Science
Teme:	acoustic high‐order topological insulator Dirac mass hinge state surface state zero refractive index
Online pristup:	https://doi.org/10.1002/advs.202201568
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