Observation of a topological nodal surface and its surface-state arcs in an artificial acoustic crystal

• Main Authors: Yang, Yihao, Xia, Jian-Ping, Sun, Hong-Xiang, Ge, Yong, Jia, Ding, Yuan, Shou-Qi, Yang, Shengyuan A., Chong, Yidong, Zhang, Baile
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; Acoustics; Topological Matter
• Online Access: https://hdl.handle.net/10356/138219
• Institution: Nanyang Technological University

Three-dimensional (3D) gapless topological phases can be classified by the dimensionality of the band degeneracies, including zero-dimensional (0D) nodal points, one-dimensional (1D) nodal lines, and two-dimensional (2D) nodal surfaces. Both nodal points and nodal lines have been realized recently i...