Chalcogen, Mg-Nb, Temperature for structural transition

• Mg-Nb-O-Pb-Ti
• Mg-Nb-O-Pb
• Bi-Mg-Nb-O-Pb
• Cd-Mg-Nb-O-Pb
• In-Mg-Nb-O-Pb-Ti
• alkaline
• transitional
• chalcogen
• nonmetal
• ferroelectric
• cubic
• tetragonal
• monoclinic
• trigonal
• orthorhombic