Valley edge states as bound states in the continuum

Autor:	Yin, Shunda, Ye, Liping, He, Hailong, Huang, Xueqin, Ke, Manzhu, Deng, Weiyin, Lu, Jiuyang, Liu, Zhengyou
Rok vydání:	2024
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Bound states in the continuum (BICs) are spatially localized states with energy embedded in the continuum spectrum of extended states. The combination of BICs physics and nontrivial band topology theory giving rise to topological BICs, which are robust against disorders and meanwhile of the merit of conventional BICs, is attracting wide attention recently. Here, we report valley edge states as topological BICs, which appear at domain wall between two distinct valley topological phases. The robustness of such BICs is demonstrated. The simulations and experiments show great agreement. Our findings of valley related topological BICs shed light on both BICs and valley physics, and may foster innovative applications of topological acoustic devices. Comment: A revised version has been accepted by Science Bulletin
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2404.05412 Zobrazit plný text záznamu View this record from Arxiv