Bi-Fe-O-Sr, Conductor, Pnictogen, Transitional, Orthorhombic

• Bi-Ca-Cu-Fe-O-Sr
• Bi-Fe-O-Pb-Sr
• Bi-Co-Fe-O-Pb-Sr
• Bi-Fe-La-O-Pb-Sr
• Bi-Cu-Fe-O-Sr
• magnetic properties
• electronic and electrical properties
• Moessbauer spectra
• thermal and thermodynamic properties
• superconductivity
• conductor
• oxide
• alkaline
• chalcogen
• pnictogen