Higher-order Dirac semimetal in a photonic crystal

• Main Authors: Wang, Zihao, Liu, Dongjue, Teo, Hau Tian, Wang, Qiang, Xue, Haoran, Zhang, Baile
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2022
• Subjects: Science::Physics::Optics and light; Photonic Crystals; Topological Insulators
• Online Access: https://hdl.handle.net/10356/156871
• Institution: Nanyang Technological University

The recent discovery of higher-order topology has largely enriched the classification of topological materials. Theoretical and experimental studies have unveiled various higher-order topological insulators that exhibit topologically protected corner or hinge states. More recently, higher-order topo...