Conductor, Disordered, Superconductor, Transitional, Residual resistivity ratio

• Ru-Si-U
• Nb-Se
• Co-Ge-U
• Fe-Se
• As-Fe-K
• transitional
• conductor
• superconductor
• disordered
• metal
• tetragonal
• cubic
• hexagonal
• orthorhombic
• trigonal