Spontaneous polarization - temperature diagram, Transitional

• Nb-O-Pb-Ti-Zn
• Br-Co-Rb
• Co-Mn-O-W
• Br-Rb-Zn
• Li-Na-Nb-O
• transitional
• ferroelectric
• chalcogen
• nonmetal
• oxide
• orthorhombic
• tetragonal
• trigonal
• monoclinic
• cubic