47, Ba-Cu-Er-O, Chalcogen, Rare earth

• Ba-Cu-Er-Ni-O
• Ba-Co-Cu-Er-O
• Ba-Cu-Er-O-Zn
• Ba-Cu-Er-O-Pr
• electronic and electrical properties
• superconductivity
• thermal and thermodynamic properties
• superconducting transition temperature
• magnetic properties
• high-tc superconductor
• lanthanoid
• chalcogen
• alkaline
• rare earth
• orthorhombic