2008, As-F-Fe-La-O, Rare earth

• As-F-Fe-La-O-Sm
• As-Ce-F-Fe-La-O
• electronic and electrical properties
• superconductivity
• conductivity or resistivity
• superconducting transition temperature
• values of superconducting transition temperature
• metalloid
• halogen
• chalcogen
• lanthanoid
• pnictogen
• tetragonal
• orthorhombic