Abstract
We have solved the generalized Eliashberg equations for the 2D Hubbard model with interactions due to exchange of antiferromagnetic spin fluctuations and harmonic phonons. We calculate the supression of T-c for d-wave superconductivity, the isotope exponent alpha, and the resitivity rho with different models for the phonon interaction alpha(2)F(q,omega). The smallest T-c supression and the largest alpha values are obtained for interactions which are enhanced at q = 0. At lower temperatures the spin-fluctuation interaction is strongly reduced by the phonon interaction due to feed-back effects. We compare our results with the experimental data on high-T-c superconductors.
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