Disordered, Transitional, Karpinski, Orthorhombic

• Ba-Cu-O-Y
• Ba-Ca-Cu-O-Y
• Fe-Se
• As-Co-Eu-Fe
• As-F-Fe-O-Sm
• superconductivity
• superconducting transition temperature
• structural properties
• values of superconducting transition temperature
• electronic and electrical properties
• transitional
• disordered
• conductor
• metal
• chalcogen