Abd el aal

• Er-Fe-Sm
• Cu-La-Mn-O-Sr
• Co-Ho-Tb
• La-Mn-O-Sr
• B-Fe-Y
• magnetic properties
• magnetization
• Curie-Weiss paramagnetism
• structural properties
• magnetic transitions
• rare earth
• lanthanoid
• transitional
• ferromagnetic
• disordered
• cubic
• trigonal
• orthorhombic
• tetragonal