Chalcogen, Transitional, Cu, Phase transitions

• Ba-Cu-O-Y
• Ba-Cu-La-O
• Cu-La-O-Sr
• Cu-Fe-S
• Cu-La-O
• fusion
• temperature for congruent melting
• phase diagram
• structural transitions
• transitional
• chalcogen
• disordered
• quaternary
• tetragonal
• orthorhombic
• monoclinic
• cubic
• trigonal