Electrical resistivity - valence electron concentration diagram, Trigonal

• Bi-Fe-O
• Bi-K-Na-O-Ti
• Bi-Fe-La-O
• Ba-Bi-Na-O-Ti
• O-Pb-Ti-Zr
• coercive electric field
• remanent polarization
• values of ferroelectric hysteresis
• chalcogen
• transitional
• ferroelectric
• disordered
• pnictogen