Chalcogen, Oxide, Transitional, Kaur

• Ba-Bi-Fe-O-Ti
• Fe-O-Sr
• Bi-Fe-O
• Co-Fe-O-Sr-Zr
• Bi-Fe-Nd-O
• magnetic properties
• structural properties
• optical properties
• electronic and electrical properties
• Moessbauer spectra
• oxide
• transitional
• chalcogen
• disordered
• conductor
• cubic
• hexagonal
• tetragonal
• trigonal
• monoclinic