Chalcogen, Disordered, Nonmetal, Dielectric loss tangent

• K-Na-Nb-O
• Ba-O-Sr-Ti
• Mg-Nb-O-Pb-Ti
• Ba-O-Ti-Zr
• La-O-Pb-Ti-Zr
• nonmetal
• chalcogen
• disordered
• transitional
• oxide
• cubic
• tetragonal
• orthorhombic
• trigonal
• monoclinic