Author(s): Yejian Hu, Jien Wu, Peidong Ye, Weiyin Deng, Jiuyang Lu, Xueqin Huang, Ziyu Wang, Manzhu Ke, and Zhengyou Liu
A three-dimensional non-Hermitian phononic crystal hosts an exceptional line semimetal with drumhead surface states and geometry-dependent skin effect protected by wavefunction and spectral topology, respectively.
[Phys. Rev. Lett. 134, 116606] Published Fri Mar 21, 2025