Ba-Fe-O, Chalcogen, Hexagonal, Mg-x polyhedra

• Ba-Fe-Mg-O
• Ba-Fe-Mg-O-Ti
• Ba-Fe-K-Mg-O-Ti
• Al-Ba-Ca-Cu-Fe-K-Mg-Ni-O-Zn
• magnetic properties
• magnetization
• magnetic hysteresis
• structural properties
• coercive field
• disordered
• oxide
• alkaline
• chalcogen
• transitional