Disordered, Ferromagnetic, Permeability

• Ba-Co-Fe-O
• Fe-Ni-O-Zn
• Cu-Fe-Ni-O-Zn
• Fe-Mn-O-Zn
• Fe-Mg-O
• magnetic properties
• magnetic susceptibility
• real part of magnetic permeability
• ferromagnetic
• transitional
• disordered
• chalcogen
• oxide
• cubic
• hexagonal
• trigonal
• tetragonal
• orthorhombic