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

• Ba-Fe-Mg-O
• Al-Ba-F-Fe-H-K-Mg-O-Si-Ti
• Ba-Ca-F-Fe-Mg-Mn-Na-O-Si-Ti
• Ba-Fe-Mg-O-U
• magnetic properties
• structural properties
• magnetization
• thermal and thermodynamic properties
• magnetic hysteresis
• transitional
• alkaline
• chalcogen
• disordered
• oxide
• hexagonal
• monoclinic
• trigonal
• orthorhombic
• cubic