Chalcogen, Disordered, Phase transitions

• Ba-O-Ti
• Fe-Te
• Fe-O
• Ca-La-Mn-O
• Fe-Se
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• pressure for structural transition
• disordered
• chalcogen
• transitional
• oxide
• cubic
• orthorhombic
• tetragonal
• monoclinic
• trigonal