Ba-Cu-O-Y, Chalcogen, Jcomah

• Ba-Cu-H-O-Y
• Ba-Cu-Fe-O-Y
• Ba-Cu-K-O-Y
• Ba-Cu-La-O-Y
• superconductivity
• electronic and electrical properties
• superconducting transition temperature
• magnetic properties
• optical properties
• transitional
• rare earth
• alkaline
• chalcogen
• antiferromagnetic
• orthorhombic
• tetragonal
• cubic