Birefringent, Permittivity (dielectric constant), Tetragonal

• Nb-O-Pb-Ti-Zn
• Ba-Nb-O-Sr
• K-Li-Nb-O
• Ba-Na-Nb-O
• Ag-Ga-S
• real part of permittivity
• dielectric loss tangent
• imaginary part of permittivity
• birefringent
• nonmetal
• transitional
• chalcogen
• ferroelectric