Realization of an acoustic third-order topological insulator

• Main Authors: Xue, Haoran, Yang, Yahui, Liu, Guigeng, Gao, Fei, Chong, Yidong, Zhang, Baile
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2019
• Subjects: Topological Materials; Science::Physics; Mechanical and Acoustical Properties
• Online Access: https://hdl.handle.net/10356/106320; http://hdl.handle.net/10220/49638
• Institution: Nanyang Technological University

The recent discovery of higher-order topological insulators (TIs) has opened new possibilities in the search for novel topological materials and metamaterials. Second-order TIs have been implemented in two-dimensional (2D) systems exhibiting topological “corner states,” as well as three-dimensional...