Chalcogen, Disordered, Oxide, Dielectric loss tangent, Monoclinic

• K-Na-Nb-O
• La-Mn-Ni-O
• Fe-Nb-O-Pb
• Bi-Nb-O-Zn
• Ag-Nb-O-Ta
• chalcogen
• oxide
• disordered
• transitional
• quaternary