Imaginary part of permittivity, Nonmetal, Tetragonal

• La-O-Pb-Ti-Zr
• As-H-K-N-O
• As-H-K-O
• Ba-Bi-Nb-O
• Mg-Nb-O-Pb-Ti
• nonmetal
• chalcogen
• transitional
• ferroelectric
• disordered