Conductor, Disordered, Metal, Fe-O, Wavenumber of optical phonon

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