Chalcogen, Conductor, Oxide, Transitional, Kar

• Bi-Ca-Fe-O-Ti
• Ba-O-Ti
• Bi-Fe-O
• Nb-O-Tl-W
• Co-Fe-O-Zn
• electronic and electrical properties
• permittivity (dielectric constant)
• optical properties
• magnetic properties
• structural properties
• oxide
• transitional
• chalcogen
• conductor
• semiconductor
• cubic
• trigonal
• orthorhombic
• tetragonal
• hexagonal