Chalcogen, Non-disordered, Oxide, Transitional, Fusion, Tetragonal

• Bi-Ca-Cu-O-Sr
• Fe-O-Sr
• Ba-Ca-Cu-O-Tl
• La-Ni-O
• Nb-O
• temperature for congruent melting
• transitional
• chalcogen
• oxide
• non-disordered