Ruiz de larramendi

• Ca-Fe-La-Ni-O
• Ca-Fe-Ni-O-Pr
• Co-Fe-O-Pr-Sr
• Co-Fe-Gd-O-Sr
• Fe-Ni-O-Pr-Sr
• structural properties
• transitional
• chalcogen
• rare earth
• lanthanoid
• alkaline
• orthorhombic