Antiferroelectric, Chalcogen, Oxide, Real part of permittivity

• Bi-Fe-O
• Bi-Na-O-Ti
• Ba-Bi-Na-O-Ti
• O-Pb-Ta-Yb
• Co-Fe-O
• chalcogen
• oxide
• antiferroelectric
• transitional
• nonmetal
• trigonal
• orthorhombic
• tetragonal
• cubic
• monoclinic