Chalcogen, Ferromagnetic, Transitional, Hexagonal, Permeability

• Ba-Co-Fe-O
• Ba-Fe-O
• Ba-Co-Fe-O-Ti
• Fe-O-Sr
• Ba-Fe-Gd-O
• magnetic properties
• magnetic susceptibility
• real part of magnetic permeability
• imaginary part of magnetic permeability
• transitional
• oxide
• ferromagnetic
• chalcogen
• alkaline