Abstract
We have calculated the effect of paramagnetic impurities on strong coupling superconductors. Imaginary axis solutions of the Eliashberg gap equations with a spin-flip term form the basis of our work. We compute the variation of the critical temperature (T/sub c/) with increasing impurity concentration, the functional derivatives of T/sub c/, the specific-heat jump, the critical-field deviation function, and the tunneling characteristics which we compare with the results of Abrikosov-Gorkov theory. In all cases important strong coupling corrections are obtained.
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