Disordered, Oxide, Karpinsky, Orthorhombic

• Bi-Fe-O-Sm
• Ba-Co-Fe-O-Tb
• Co-Fe-La-O
• Bi-Ca-Fe-Nb-O
• Bi-Ca-Fe-O-Ti
• magnetic properties
• structural properties
• magnetization
• values of magnetization
• magnetic hysteresis
• transitional
• oxide
• disordered
• chalcogen
• rare earth