Alkali, Transitional, Dielectric loss tangent, Orthorhombic

• K-Li-Na-Nb-O-Sb
• Li-Na-Nb-O
• K-Li-Na-Nb-O
• K-Na-Nb-O
• K-Li-Na-Nb-O-Sb-Ta
• transitional
• alkali
• chalcogen
• oxide
• ferroelectric