Chalcogen, Lanthanoid, Oxide, Epjbfy

• Ca-Co-O-Pr
• As-Ce-Fe-O
• As-Fe-O-Pr
• As-Fe-La-O
• As-Fe-O-Sm
• electronic and electrical properties
• magnetic properties
• structural properties
• conductivity or resistivity
• magnetization
• oxide
• chalcogen
• lanthanoid
• rare earth
• transitional
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal