Ba-Cu-Er-O, Chalcogen, Conductor, Orthorhombic

• Ba-Cu-Er-Ni-O
• Ba-Cu-Er-O-Zn
• Ba-Co-Cu-Er-O
• Ba-Ca-Cu-Er-O
• electronic and electrical properties
• thermal and thermodynamic properties
• magnetic properties
• superconductivity
• superconducting transition temperature
• alkaline
• lanthanoid
• chalcogen
• conductor
• rare earth