Cuprate, Oxide, Orthorhombic, Values of electronic energy gap

• Bi-Ca-Cu-O-Sr-Y
• Ba-Cu-O-Pr-Y
• Ba-Cu-O-Pr
• Ba-Cu-Fe-La-O
• Ba-Ca-Cu-La-Nd-O
• cuprate
• high-tc superconductor
• chalcogen
• oxide