Dimensional hierarchy of higher-order topology in three-dimensional sonic crystals

Here, the authors report the experimental discovery of such a dimensional hierarchy of the topologically-protected 2D surface states, 1D hinge states and 0D corner states in a single 3D acoustic system by using higher-order topological sonic crystals.

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Bibliographic Details
Main Authors: Xiujuan Zhang, Bi-Ye Xie, Hong-Fei Wang, Xiangyuan Xu, Yuan Tian, Jian-Hua Jiang, Ming-Hui Lu, Yan-Feng Chen
Format: article
Language:EN
Published: Nature Portfolio 2019
Subjects:
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Online Access:https://doaj.org/article/a6c152c28bac450ba6a56d795ef56d6f
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