Ferroelectric, Nonmetal, Transitional, Piezoresistivity - pressure diagram

• Bi-Fe-O
• Ba-O-Ti
• Ba-Ca-O-Ti-Zr
• Ba-O-Ti-Zr
• K-Li-Na-Nb-O-Sb
• transitional
• nonmetal
• ferroelectric
• chalcogen
• oxide
• orthorhombic
• tetragonal
• trigonal
• monoclinic
• cubic