Ba-Cu-O-Pr, Pmmm, Rare earth, Transitional

• Ba-Cu-O-Pr-Y
• Ba-Cu-Gd-O-Pr
• Ba-Cu-Eu-O-Pr
• Ba-Cu-O-Pr-Sr
• magnetic properties
• electronic and electrical properties
• structural properties
• superconductivity
• conductivity or resistivity
• lanthanoid
• rare earth
• alkaline
• chalcogen
• transitional
• orthorhombic