Ba-Nb-O, Chalcogen, Nb-x polyhedra, Tetragonal

• Ba-Nb-O-Sr
• Ba-Nb-O-Zr
• Ba-Nb-O-Ti
• Ba-Cu-Nb-O-Pr
• thermal and thermodynamic properties
• electronic and electrical properties
• structural properties
• permittivity (dielectric constant)
• phase transitions
• transitional
• alkaline
• chalcogen
• oxide
• disordered