Er-Fe, Er-x polyhedra, Neel temperature

• Er-Fe-Ge
• Er-Fe-Si
• Er-Fe-O
• C-Er-Fe-Mn
• Al-Er-Fe
• lanthanoid
• transitional
• rare earth
• antiferromagnetic
• ternary
• tetragonal
• orthorhombic
• hexagonal
• cubic
• trigonal