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Through my work on SNSPDs, I came across some need to characterize superconducting thin-films. There are better resources on the internet, but sometimes I just need to look up something.
| \[ \xi(T=0K) = \sqrt{\frac{\Phi_0}{2 \pi B_{C2}(T=0K)}} \] |
| \[ \lambda(T=0K) = \sqrt{\frac{\hbar \rho_0}{\pi \mu_0 \Delta(T=0K)}} \] |