Extended topological valley-locked surface acoustic waves

doi:10.1038/s41467-022-29019-8

	Extended topological valley-locked surface acoustic waves
	Wang, Ji Qian 1,2; Zhang, Zi Dong 1; Yu, Si Yuan 1,2,3; Ge, Hao 1; Liu, Kang Fu 4; Wu, Tao4 ; Sun, Xiao Chen 1; Liu, Le 1,2; Chen, Hua Yang 1; He, Cheng 1,2,3; Lu, Ming Hui 1,2,3; Chen, Yan Feng 1,2,3
	2022-03-14
发表期刊	NATURE COMMUNICATIONS (IF:14.7[JCR-2023],16.1[5-Year])
EISSN	2041-1723
卷号	13 期号:1
发表状态	已发表
DOI	10.1038/s41467-022-29019-8
摘要	Stable and efficient guided waves are essential for information transmission and processing. Recently, topological valley-contrasting materials in condensed matter systems have been revealed as promising infrastructures for guiding classical waves, for they can provide broadband, non-dispersive and reflection-free electromagnetic/mechanical wave transport with a high degree of freedom. In this work, by designing and manufacturing miniaturized phononic crystals on a semi-infinite substrate, we experimentally realized a valley-locked edge transport for surface acoustic waves (SAWs). Critically, original one-dimensional edge transports could be extended to quasi-two-dimensional ones by doping SAW Dirac “semimetal” layers at the boundaries. We demonstrate that SAWs in the extended topological valley-locked edges are robust against bending and wavelength-scaled defects. Also, this mechanism is configurable and robust depending on the doping, offering various on-chip acoustic manipulation, e.g., SAW routing, focusing, splitting, and converging, all flexible and high-flow. This work may promote future hybrid phononic circuits for acoustic information processing, sensing, and manipulation.
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收录类别	SCIE
语种	英语
Scopus 记录号	2-s2.0-85126209983
来源库	Scopus
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/165038
专题	信息科学与技术学院_PI研究组_吴涛组
作者单位	1.National Laboratory of Solid State Microstructures & College of Engineering and Applied Sciences,Nanjing University,Nanjing,210093,China 2.Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing,210093,China 3.Jiangsu Key Laboratory of Artificial Functional Materials,Nanjing University,Nanjing,210093,China 4.School of Information Science and Technology,ShanghaiTech University,Shanghai,201210,China
推荐引用方式 GB/T 7714	Wang, Ji Qian,Zhang, Zi Dong,Yu, Si Yuan,et al. Extended topological valley-locked surface acoustic waves[J]. NATURE COMMUNICATIONS,2022,13(1).
APA	Wang, Ji Qian.,Zhang, Zi Dong.,Yu, Si Yuan.,Ge, Hao.,Liu, Kang Fu.,...&Chen, Yan Feng.(2022).Extended topological valley-locked surface acoustic waves.NATURE COMMUNICATIONS,13(1).
MLA	Wang, Ji Qian,et al."Extended topological valley-locked surface acoustic waves".NATURE COMMUNICATIONS 13.1(2022).