Li-Nb-O, Nb-x polyhedra, Wavenumber of optical phonon

• Ba-Li-Nb-O-W
• Li-Na-Nb-O
• K-Li-Nb-O
• Li-Nb-O-Ta
• transitional
• oxide
• alkali
• chalcogen
• disordered
• trigonal
• orthorhombic
• tetragonal