C121, Chalcogen, Conductor, Disordered, Transitional

• Ba-O-Ti
• B-Ca-La-O
• Bi-O-V
• C-Cr-H-La-O
• Mg-Mo-O-Rb-Sc
• electronic and electrical properties
• structural properties
• optical properties
• conductivity or resistivity
• permittivity (dielectric constant)
• disordered
• transitional
• conductor
• chalcogen
• alkaline
• monoclinic
• triclinic