Linked from
The 64 pages that link to Superconductivity, each with the reason it gives.
Electric currentRelated: It permits persistent currents without ordinary resistive energy loss.
PhononRelated: In conventional superconductors, phonons can mediate attraction between electrons.
Meissner effectNarrower topic: The Meissner effect is one of the defining properties of this state.
Moiré patternRelated: Certain twisted moiré materials become superconducting at low temperatures.
Abrikosov vortexNarrower topic: Vortices are structures within the superconducting state.
Type-I superconductorNarrower topic: Type-I behavior is one form of this broader state.