Alkali, Conductor, Non-disordered, Real part of permittivity

• Li-O-Ta
• Fe-Li-O
• Na-Nb-O
• K-O-S
• K-O-Ta
• non-disordered
• conductor
• alkali
• chalcogen
• disordered
• cubic
• orthorhombic
• monoclinic
• trigonal
• tetragonal