Ba-Fe-O, Hard magnet

• Ba-Co-Fe-O
• Ba-Co-Fe-O-Ti
• Ba-Fe-O-Re
• Ba-Fe-Mn-O
• magnetic properties
• magnetization
• magnetic hysteresis
• electronic and electrical properties
• coercive field
• transitional
• hard magnet
• alkaline
• chalcogen
• disordered
• hexagonal
• cubic
• trigonal
• monoclinic
• orthorhombic