2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19279By considering the Ginzburg-Landau model, compactified in one of the spatial dimensions, and using a modified Matsubara formalism, we determine the dependence of the superconducting transition temperature (T_c) of a film as a function of its thickness (L). We show that T_c is a decreasing linear function of L^{-1}, as has been found experimentally. The critical thickness for the suppression of superconductivity is expressed in terms of the Ginzburg-Landau parameters.4 pages, minor changeSoft Condensed MatterHigh Energy Physics - Theorytext