Photograph of a twisted moiré phononic crystal. The inset amplifies the details of the top layer in which a sound probe and a sound point source are inserted.
From the article:
Topological Network Modes in a Twisted Moiré Phononic CrystalDan Yao, Liping Ye, Zhonghao Fu, Qing Wang, Hailong He, Jiuyang Lu, Weiyin Deng, Xueqin Huang, Manzhu Ke, and Zhengyou Liu
Phys. Rev. Lett. 132, 266602 (2024)
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