Chalcogen, Pnictogen, Kemmler sack, Orthorhombic

• Bi-Ca-Cu-O-Pb-Sr
• Bi-Fe-O-Pb-Sr
• Bi-Fe-La-O-Pb-Sr
• Bi-Ca-Cu-Nd-O-Pb-Sr
• Bi-Fe-Ni-O-Pb-Sr
• electronic and electrical properties
• superconductivity
• conductivity or resistivity
• magnetic properties
• superconducting transition temperature
• pnictogen
• transitional
• chalcogen
• alkaline
• intermediate valence