Chalcogen, Nonmetal, Quaternary, Electric polarization, Kim

• Co-Mn-O-W
• Ge-O-Pb-Sr
• Bi-Cr-Fe-O
• Fe-Ge-Na-O
• Bi-Na-O-Ti
• values of electric polarization
• spontaneous polarization
• electric dipole moment
• quaternary
• nonmetal
• chalcogen
• oxide
• transitional
• trigonal
• monoclinic
• orthorhombic
• tetragonal
• hexagonal