Alkali, Ferroelectric, Nonmetal, Transitional, 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
• transitional
• ferroelectric
• alkali
• nonmetal
• chalcogen
• tetragonal
• orthorhombic
• trigonal
• cubic
• monoclinic