Antiferroelectric, Chalcogen, Ferromagnetic, Intermediate valence, Co-Fe-O

• Co-Fe-O-Sm
• Bi-Co-Fe-Gd-O
• Bi-Co-Fe-Nb-O
• Ba-Co-Cu-Fe-O-Y
• magnetic properties
• structural properties
• magnetization
• magnetic hysteresis
• electronic and electrical properties
• intermediate valence
• antiferroelectric
• ferromagnetic
• chalcogen
• oxide
• cubic
• orthorhombic
• trigonal
• monoclinic