Chalcogen, Oxide, Wavenumber of longitudinal optical phonon

• Ba-Cu-O-Y
• Fe-H-K-Mo-O
• Cu-La-O
• Ce-O-V
• Ba-Cu-O-Sm
• chalcogen
• oxide
• transitional
• disordered
• non-disordered
• tetragonal
• orthorhombic
• cubic
• monoclinic
• trigonal