Conductor, Transitional, Fe-O, Wavenumber of optical phonon

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