EXPERIMENTAL TEST OF THE THEORY OF HIGH-FIELD SUPERCONDUCTIVITY

The theory of high-field superconductivity contains two parameters, one of which, the spin-orbit scattering rate, previously has been treated as a variable in fitting the theory to the experimental data. We have made critical-field measurements on thin-film super-conductors and have simultaneously determined both parameters from an independent spin-polarized tunneling measurement, allowing for the first time a test of the theory with no adjustable parameters. A significant lack of agreement was found. © 1979 The American Physical Society.