Localization and interaction effects in two-dimensional W-Re films

In this Communication we report our findings on two-dimensional amorphous W-Re films of various compositions in which we have studied superconducting fluctuations, the superconducting transition temperature Tc, and the magnetoresistance. We have also measured the dependence of Tc on sheet resistance. The Tc data fit well with the predictions of Maekawa and Fukuyama which are based on localization and Coulomb-interaction effects. Inelastic-scattering times derived from these measurements agree with data from phase-slip phenomena. © 1983 The American Physical Society.