Conductor, Semiconductor, Transitional, Kar

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