Multiple Open and Closed Nodal‐Line Phonons in Solids with a P3¯m$P\overline{3}m$1 Space Group - Wang, Xiaotian; Sun, Tingting; Xie, Chengwu; Yuan, Hongkuan; Tie, Yang; Zhang, Zeying; Zhang, Gang (Advanced Physics Research, 2025)
Keywords: Barium; Euclidean space; Lattice theory; nodal line; Phonons; Symmetry; topological phonon; topological states