Glide symmetry protected higher-order topological insulators from semimetals with butterfly-like nodal lines
Abstract Most topological insulators (TIs) discovered today in spinful systems can be transformed from topological semimetals (TSMs) with vanishing bulk gap via introducing the spin-orbit coupling (SOC), which manifests the intrinsic links between the gapped topological insulator phases and the gapless TSMs.Recently, we have discovered a family of