Er-Fe, Er-x polyhedra, Magnetic transitions, Transitional

• B-Er-Fe
• B-Er-Fe-Mn
• Er-Fe-N
• Er-Fe-Si
• Curie temperature
• temperature for magnetic transition
• Neel temperature
• magnetic field for magnetic transition
• transitional
• lanthanoid
• rare earth
• ferromagnetic
• metal
• tetragonal
• hexagonal
• cubic
• orthorhombic
• trigonal