Dielectric loss tangent, Disordered, Nonmetal, Orthorhombic

• K-Na-Nb-O
• Bi-La-O-Ti
• Bi-O-Sr-Ti
• Bi-O-Sr-Ta
• Ba-Bi-Nb-O-Pb
• nonmetal
• chalcogen
• disordered
• transitional
• oxide