Alkali, Chalcogen, Ternary, Transitional, Temperature for structural transition

• Na-Nb-O
• Na-O-V
• Co-Na-O
• K-Nb-O
• K-Mo-O
• ternary
• transitional
• alkali
• chalcogen
• oxide
• orthorhombic
• monoclinic
• trigonal
• tetragonal
• cubic