Tunable Dirac Semimetals with Higher-order Fermi Arcs in Kagome Lattices Pd${}_3$Pb${}_2$X${}_2$ (X = S, Se)

Simin Nie, Jia Chen, Changming Yue +4

Bulk-boundary correspondence has achieved a great success in the identification of topological states. However, this elegant strategy doesn't apply to the Dirac semimetals (DSMs).…