Abstract
The calculation was made of the effect of magnetic impurities on the normal and superconductive properties of a multiband s-wave superconductor by direct solution of the two-band Eliashberg equations. In this way, the critical temperature was determined, as well as the values of the superconductive gaps, and the shape of the superconductive density of states and other physical quantities that depend on the concentration of magnetic impurities. It was found that the gaps and the penetration lengths display an unusual behaviour as a function of temperature. The possibility is examined that the presence of a negative induced gap raises the critical temperature.
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