Z-ACA allotrope: a topological carbon material with obstructed Wannier charge center, real topology, and hinge states
As the most prevalent element on our planet, carbon manifests a wide variety of allotropic phases, significantly contributing to its complex physical properties.Recently, several carbon allotropes have been reported to possess abundant topological phases in theory and experiment.This work focuses on a sp3 carbon allotrope, Z-ACA allotrope, which co