Valley-Selective Topological Corner States in Sonic Crystals

Higher-order topological insulators (HOTIs), a new horizon of topological phases of matter, host lower-dimensional corner or hinge states, providing important stepping stones to the realization of robust topological waveguides in higher dimensions. The nontrivial band topology that gives rise to the...

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Bibliographic Details

Published in:	Physical review letters Vol. 126; no. 15; p. 156401
Main Authors:	Zhang, Xiujuan, Liu, Le, Lu, Ming-Hui, Chen, Yan-Feng
Format:	Journal Article
Language:	English
Published:	United States American Physical Society 16.04.2021
Subjects:	Acoustics Corners Degrees of freedom Sound fields Topological insulators Topology Valleys Waveguides
ISSN:	0031-9007, 1079-7114, 1079-7114
Online Access:	Get full text
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