Chalcogen, Rare earth, Transitional, Kebede

• Ba-Cu-O-Pr
• Ba-Cu-O-Pr-Y
• Ba-Cu-O-Y
• Eu-Fe-O
• Ce-Cu-Nb-O-Pr-Sr
• magnetic properties
• magnetic susceptibility
• thermal and thermodynamic properties
• electronic and electrical properties
• conductivity or resistivity
• chalcogen
• rare earth
• transitional
• oxide
• alkaline
• orthorhombic
• tetragonal