Conductor, Disordered, Fe, Real part of permittivity

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