Conductor, Metal, Superconductor, Katayama

• Au-Ce-Si
• As-Fe-Sr
• As-Ba-Fe
• Sn-Te
• Fe-Se-Te
• electronic and electrical properties
• magnetic properties
• conductivity or resistivity
• phase transitions
• structural transitions
• metal
• conductor
• superconductor
• metalloid
• transitional
• tetragonal
• orthorhombic
• cubic
• trigonal
• monoclinic