Chalcogen, Wavenumber of transverse optical phonon

• Ba-Cu-O-Y
• K-Li-O-S
• Bi-Fe-O
• Cu-La-O
• Ba-Cu-O-Sm
• chalcogen
• transitional
• non-disordered
• disordered
• nonmetal
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal