Mg-Nb-O-Pb-Ti, Nb-x polyhedra, Oxide, Transitional

• Mg-Nb-O-Pb-Ti-Zn-Zr
• Mg-Nb-O-Pb-Ti-W
• Bi-Mg-Nb-O-Pb-Ti
• In-Mg-Nb-O-Pb-Ti
• electronic and electrical properties
• permittivity (dielectric constant)
• phase transitions
• structural transitions
• temperature for structural transition
• oxide
• disordered
• alkaline
• chalcogen
• transitional
• cubic
• tetragonal
• monoclinic
• trigonal
• orthorhombic