Chalcogen, Oxide, Rare earth, Transitional, Real part of permittivity

• La-O-Pb-Ti-Zr
• Bi-Fe-La-O
• Bi-O-Pb-Sc-Ti
• Ba-Cu-O-Y
• O-Pb-Ta-Yb
• rare earth
• transitional
• chalcogen
• oxide
• lanthanoid
• orthorhombic
• cubic
• tetragonal
• trigonal
• monoclinic