B-x polyhedra, Quadrupole splitting

• Fe-O-Zn
• Fe-Ni-O-Zn
• Fe-O
• B-Fe-Nd
• Co-Fe-O-Zn
• transitional
• disordered
• chalcogen
• ferromagnetic
• ferrimagnet
• cubic
• tetragonal
• orthorhombic
• hexagonal
• trigonal