Chalcogen, Transitional, Khemakhem, Trigonal

• Bi-Na-O-Ti
• Bi-Gd-Na-O-Ti
• Bi-Er-Na-O-Ti
• Bi-Dy-Na-O-Ti
• Ba-Bi-Fe-O-Sr-Ti
• electronic and electrical properties
• permittivity (dielectric constant)
• optical properties
• phonons
• ferroelectric transitions
• transitional
• chalcogen
• ferroelectric
• oxide
• pnictogen