Birefringent, Chalcogen, Nonmetal, Tetragonal

• Ag-Ga-S
• Nb-O-Pb-Ti-Zn
• Ba-Na-Nb-O
• Dy-O-V
• K-Li-Nb-O
• electronic and electrical properties
• optical properties
• structural properties
• thermal and thermodynamic properties
• permittivity (dielectric constant)
• chalcogen
• nonmetal
• birefringent
• transitional
• non-disordered