Bi-O-Sr-Ta, Bi-x polyhedra, Chalcogen, Electronic and electrical properties

• Bi-O-Pr-Sr-Ta
• Ba-Bi-O-Sr-Ta
• Bi-Eu-O-Sr-Ta
• Bi-O-Sc-Sr-Ta
• permittivity (dielectric constant)
• electric polarization
• values of electric polarization
• ferroelectric transitions
• ferroelectric Curie temperature
• disordered
• pnictogen
• chalcogen
• alkaline
• transitional
• orthorhombic
• tetragonal