Cubic, Dielectric loss tangent, O-Pb

• Cd-Mg-Nb-O-Pb
• Fe-Nb-O-Pb
• La-O-Pb-Ti-Zr
• Mg-Nb-O-Pb-Ti
• O-Pb-Sr-Ti
• chalcogen
• transitional
• nonmetal
• perovskite
• disordered