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I am trying to figure out whether there is a way to express the ratio of the critical current of a superconductor at zero and finite magnetic fields [denoted as Ic(0) and Ic(B)] as a function of the ratio of corresponding critical temperatures [denoted as Tc(0) and Tc(B)].

According to Tinkham, the critical current of a thin film is given by Ic∝(1-T/T_C)^(3/2).

I appreciate any comments.

Thanks,

-aleksson