Chalcogen, Disordered, Transitional, Enthalpy change

• Cu-O
• Ba-Cu-O-Y
• O-Sr-Zr
• Eu-Hf-O
• Fe-La-O
• disordered
• chalcogen
• transitional
• oxide
• non-disordered
• cubic
• orthorhombic
• monoclinic
• tetragonal
• trigonal