Chalcogen, Oxide, Rare earth, Dielectric loss tangent, Tetragonal

• La-O-Pb-Ti-Zr
• Fe-La-Nb-O-Pb-Ti-Zr
• Eu-Nb-O-Sr-Ti
• La-O-Pb-Ti
• Bi-La-Nb-O-Sr
• chalcogen
• rare earth
• oxide
• transitional
• lanthanoid