Chalcogen, Shimoyama

• As-Ca-Fe-Mg-O-Ti
• As-F-Fe-O-Sm
• La-Mn-O-Sr
• As-Fe-O-Sr-V
• As-Fe-Mg-O-Sr-Ti
• superconductivity
• electronic and electrical properties
• structural properties
• conductivity or resistivity
• superconducting transition temperature
• chalcogen
• transitional
• alkaline
• pnictogen
• rare earth
• tetragonal
• orthorhombic
• cubic
• trigonal
• hexagonal