Chalcogen, Non-disordered, Transitional, Phase transitions

• Ba-O-Ti
• O-V
• Fe-O
• Fe-Se
• S-Ta
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• pressure for structural transition
• non-disordered
• chalcogen
• transitional
• oxide
• monoclinic
• orthorhombic
• tetragonal
• cubic
• trigonal