Bulk–disclination correspondence in topological crystalline insulators

• Published in: Nature (London) Vol. 589; no. 7842; pp. 381 - 385
• Main Authors: Liu, Yang, Leung, Shuwai, Li, Fei-Fei, Lin, Zhi-Kang, Tao, Xiufeng, Poo, Yin, Jiang, Jian-Hua
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 21.01.2021; Nature Publishing Group
• Subjects: 639/301/119/2792/4129; 639/624/399/1015; Algebraic topology; Analysis; Bulk solids flow; Correspondence; Crystal defects; Crystal structure; Crystallinity; Crystallography; Crystals; Disclinations; Electric insulators; Electrical equipment and supplies industry; Experiments; Humanities and Social Sciences; Insulators; Materials; multidisciplinary; Observations; Photonic crystals; Product defects and recalls; Properties; Robustness; Science; Science (multidisciplinary); Structure; Symmetry; Topology; China

Most natural and artificial materials have crystalline structures from which abundant topological phases emerge 1 – 6 . However, the bulk–edge correspondence—which has been widely used in experiments to determine the band topology from edge properties—is inadequate in discerning various topological...