Electrical resistivity - valence electron concentration diagram, Orthorhombic, Transitional

• Bi-O-Sr-Ta
• Bi-O-Sr-Ti
• Bi-Co-Fe-O-Ti
• Bi-Fe-O-Sr-Ti
• Bi-O-Ti
• coercive electric field
• remanent polarization
• values of ferroelectric hysteresis
• transitional
• chalcogen
• ferroelectric
• nonmetal
• pnictogen