Chalcogen, Disordered, Transitional, Phase transitions, Trigonal

• Bi-Fe-O
• Cu-Fe-O
• La-Mn-O-Sr
• Bi-Na-O-Ti
• Se-Ti
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• decomposition
• transitional
• chalcogen
• disordered
• oxide