Electric polarization, Ferroelectric

• Bi-Fe-O
• Ba-O-Ti
• O-Pb-Ti-Zr
• Mg-Nb-O-Pb-Ti
• Nb-O-Pb-Ti-Zn
• values of electric polarization
• spontaneous polarization
• ferroelectric
• chalcogen
• transitional
• nonmetal
• disordered
• orthorhombic
• tetragonal
• trigonal
• monoclinic
• cubic