Karpinsky

• Bi-Fe-O-Sm
• Co-Fe-La-O
• Bi-Fe-La-O
• Ba-Co-La-O
• Bi-Fe-O-Pr
• structural properties
• magnetic properties
• magnetization
• values of magnetization
• transitional
• chalcogen
• rare earth
• oxide
• lanthanoid
• orthorhombic
• trigonal
• cubic
• tetragonal
• monoclinic