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Physics, Astronomy & Cosmology / Re: What is a Fermion?
« on: 09/01/2024 10:01:24 »Quote from: varsigma
If it looks like a metallic conductor , it's probably a Fermi surfaceIf we take a metallic superconductor (like Al, Ga, Hg, Zn, etc), the metallic lustre at room temperature is provided by electrons in the Fermi surface.
Once it becomes superconducting (at around 0.8-4K), I presume it retains its metallic lustre(?)
- Is this because most electrons are still at the Fermi surface, while a small fraction form Cooper pairs, and are no longer at the Fermi surface?
See: https://en.wikipedia.org/wiki/List_of_superconductors