Ontology highlight
ABSTRACT:
SUBMITTER: Zhang X
PROVIDER: S-EPMC6941978 | biostudies-literature | 2020 Jan
REPOSITORIES: biostudies-literature
Zhang Xiujuan X Lin Zhi-Kang ZK Wang Hai-Xiao HX Xiong Zhan Z Tian Yuan Y Lu Ming-Hui MH Chen Yan-Feng YF Jiang Jian-Hua JH
Nature communications 20200103 1
Symmetry and topology are two fundamental aspects of many quantum states of matter. Recently new topological materials, higher-order topological insulators, were discovered, featuring bulk-edge-corner correspondence that goes beyond the conventional topological paradigms. Here we discover experimentally that the nonsymmorphic p4g acoustic metacrystals host a symmetry-protected hierarchy of topological multipoles: the lowest band gap has a quantized Wannier dipole and can mimic the quantum spin H ...[more]