Pseudospin-dependent Acoustic Topological Insulator by Sonic Crystals With Same Hexagonal Rods

Pseudospin-dependent Acoustic Topological Insulator by Sonic Crystals With Same Hexagonal Rods

We report the experimental and numerical realization of a pseudospin-dependent acoustic topological insulator based on two sonic crystals constructed by the same regular hexagonal rods. Based on the zone folding mechanism, we obtain double Dirac cones with a four-fold deterministic degeneracy in the...

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Bibliographic Details
Main Authors:	Ding Jia, Shuai Gu, Shuai Jiang, Yong Ge, Shou-qi Yuan, Hong-xiang Sun
Format:	Article
Language:	English
Published:	Frontiers Media S.A. 2021-09-01
Series:	Frontiers in Physics
Subjects:	sonic crystal acoustic topological insulator pseudospin dirac cone acoustics
Online Access:	https://www.frontiersin.org/articles/10.3389/fphy.2021.762567/full

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