Superconductivity and Superfluidity The Microscopic Origins of Superconductivity The story so far -what do we know about superconductors?: (i) Superconductors. - ppt download
BCS Theory of Superconductivity
Intuitive explanation for the existence of an energy gap in superconductors - Physics Stack Exchange
Squids
Temperature dependence of the superconducting energy gap Δ for Sn. | Download Scientific Diagram
Symmetry | Free Full-Text | Self-Consistent Two-Gap Description of MgB2 Superconductor | HTML
Clarifying the source of superconductivity of a new superconductor, CaC6 (Press Release) — SPring-8 Web Site
Why is there an energy gap in superconductors? - Physics Stack Exchange