Alkaline, Chalcogen, Nonmetal, Dielectric loss tangent, Trigonal

• Ba-O-Ti-Zr
• Ba-Ca-O-Ti-Zr
• Ba-Bi-Na-O-Ti
• Ba-Bi-Fe-O-Ti
• Bi-Fe-O-Sr-Ti
• chalcogen
• nonmetal
• alkaline
• transitional
• oxide