Effect of localization, correlations, and scattering from magnetic impurities on the superconducting critical temperature

The decrease of the critical temperature of high-temperature superconductors due to disorder effects and correlations is considered. The disorder induced by impurities gives rise to localization which is strongly affected by the correlations and spin-dependent scattering. Such a mechanism gives rise to a strong depression of the critical temperature, which seems to be specific for the high-temperature superconductors