Saint gregoire

• K-Li-Nb-O-Pb
• F-Li-Th
• Ba-Bi-Nb-O-Sr
• Fe-O-P
• F-Fe-K
• structural properties
• structural transitions
• phase transitions
• temperature for structural transition
• ferroelectric Curie temperature
• transitional
• chalcogen
• alkali
• ternary
• quaternary
• orthorhombic
• tetragonal
• trigonal
• hexagonal