Conductor, Disordered, Transitional, Wavenumber of optical phonon

• Ba-Cu-O-Y
• Bi-Fe-O
• O-Zn
• Fe-O
• Fe-Ni-O
• disordered
• conductor
• transitional
• chalcogen
• oxide
• orthorhombic
• cubic
• tetragonal
• trigonal
• hexagonal