Fe-O, Ferromagnetic, Magnetic hysteresis, Trigonal

• Bi-Fe-O
• Bi-Fe-La-O
• Bi-Fe-O-Sm
• Bi-Fe-Nd-O
• Bi-Dy-Fe-O
• coercive field
• remanent magnetization
• remanent induction
• transitional
• ferromagnetic
• chalcogen
• oxide
• disordered