Chalcogen, Oxide, Electric properties, Trigonal

• Bi-Fe-O
• La-Mn-O-Sr
• Ca-Cu-O-Ti
• Bi-Na-O-Ti
• Ca-La-Mn-O
• permittivity (dielectric constant)
• electrical conductivity
• conductivity or resistivity
• effective mass
• electronic energy gap
• oxide
• chalcogen
• transitional
• disordered
• rare earth