Alkali, Chalcogen, Ferroelectric, Nonmetal, Dielectric loss tangent

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