Mg-Nb-O-Pb, Nb-x polyhedra, Trigonal

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