B-x polyhedra, Fe-O, Ferromagnetic, Magnetic properties

• Co-Fe-O
• Fe-O-Zn
• Fe-Ni-O
• Fe-Ni-O-Zn
• magnetization
• Moessbauer spectra
• magnetic hysteresis
• magnetic transitions
• coercive field
• chalcogen
• transitional
• ferromagnetic
• disordered
• ferrimagnet
• cubic
• orthorhombic
• trigonal
• tetragonal
• monoclinic