Chalcogen, Cuprate, Cu-La-O-Sr, Temperature for congruent melting

• Cu-La-O-Pb-Sr
• Bi-Cu-La-O-Sr
• Ca-Cu-La-O-Sr
• Ba-Cu-La-O-Sr
• chalcogen
• cuprate
• alkaline
• high-tc superconductor
• tetragonal
• orthorhombic
• monoclinic