Enhancement of superconductivity by decreased magnetic spin-flip scattering: Nonmonotonic TC dependence with enhanced magnetic ordering
نویسندگان
چکیده
Fe/Cu superlattices exhibit a structural and magnetic transition with increasing Fe layer thickness, thus increasing the Curie temperature. An enhancement in the superconducting transition temperature is found in proximity coupled Nb/@Fe/Cu# layers as the Fe thickness increases. These results indicate a weakening of the magnetic proximity effect for the material with higher Curie temperature, and suggest a dominant role of spin-flip scattering in the pair breaking processes which give rise to the proximity effect. @S0163-1829~99!03221-X#
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