El kaaouachi

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