Antiferroelectric, Chalcogen, Structural properties, Trigonal

• Bi-Fe-O
• Bi-K-Na-O-Ti
• Al-O-Pr
• Bi-Fe-O-Y
• Ba-O-Ti
• mechanical properties
• compressibility
• thermal and thermodynamic properties
• cell volume change at phase transition
• chalcogen
• antiferroelectric
• transitional
• nonmetal