Symmetry-enforced nodal chain phonons

• Main Authors: Zhu, Jiaojiao, Wu, Weikang, Zhao, Jianzhou, Chen, Hao, Zhang, Lifa, Yang, Shengyuan A.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Weyl Fermions; Semimetal
• Online Access: https://hdl.handle.net/10356/164342
• Institution: Nanyang Technological University

Topological phonons in crystalline materials have been attracting great interest. Most cases studied so far are direct generalizations of the topological states from electronic systems. Here, we reveal a class of topological phonons - the symmetry-enforced nodal-chain phonons, which manifest the cha...