Bi-Fe-O, Chalcogen, Magnetic properties, Trigonal

• Bi-Fe-La-O
• Ba-Bi-Fe-O
• Bi-Ca-Fe-O
• Ba-Bi-Fe-O-Ti
• magnetization
• magnetic hysteresis
• values of magnetization
• coercive field
• transitional
• pnictogen
• chalcogen
• oxide
• disordered