Chalcogen, Disordered, Hexagonal, Permeability

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