Chalcogen, Dielectric loss tangent, Nb-Sr

• Bi-Nb-O-Sr
• Bi-La-Nb-O-Sr
• Ba-Nb-O-Sr
• Eu-Nb-O-Sr-Ti
• Nb-O-Pr-Sr-Ti
• transitional
• chalcogen
• alkaline
• nonmetal
• quinary
• tetragonal
• orthorhombic
• trigonal
• cubic
• monoclinic