Bulk–disclination correspondence in topological crystalline insulators

Abstract

Most natural and artificial materials have crystalline structures from which abundant topological phases emerge^1,2,3,4,5,6. 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 crystalline phases^{7,8,9,10,11,12,13,14,15,16}, leading to challenges in the experimental classification of the large family of topological crystalline materials^{4,<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" title="Vergniory, M. G. et al. A complete catalogue of high-quality...}