Disordered, Ferromagnetic, Karpinsky, Trigonal

• Co-La-Mn-O-Sr
• Bi-Fe-O
• Bi-Fe-La-O
• Bi-Fe-O-Sm
• Bi-Ca-Fe-O
• magnetic properties
• magnetization
• structural properties
• magnetic transitions
• values of magnetization
• oxide
• ferromagnetic
• disordered
• chalcogen
• transitional