P4/m

• Cu-La-O
• Ba-Cu-La-O
• Ga-Ti
• Bi-Fe-O-Sr
• Bi-Fe-La-O-Sr
• structural properties
• magnetic properties
• electronic and electrical properties
• conductivity or resistivity
• magnetic susceptibility
• transitional
• chalcogen
• rare earth
• lanthanoid
• disordered
• tetragonal