Three-dimensional topological acoustic crystals with pseudospin-valley coupled saddle surface states
oleh: Cheng He, Si-Yuan Yu, Hao Ge, Huaiqiang Wang, Yuan Tian, Haijun Zhang, Xiao-Chen Sun, Y. B. Chen, Jian Zhou, Ming-Hui Lu, Yan-Feng Chen
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2018-11-01 |
Deskripsi
Valley states can be used to realise topologically protected transport. Here, He et al. show that considering additional degrees of freedom, together with glide symmetry, allow the design of 2D acoustic topological pseudospin-valley coupled saddle surface states in 3D structures.