M. Crisan et al., CRITICAL-TEMPERATURE FOR A LAYERED SUPERCONDUCTOR CONTAINING NONMAGNETIC IMPURITIES, Journal of superconductivity, 9(2), 1996, pp. 187-192
The critical temperature of a layered superconductor has been calculat
ed using the model of an electron-bosonic pairing. Influence of impuri
ties has been considered using for the bosonic propagator the modified
plasmonic propagator. The main result is a decreasing of the critical
temperature due to the nonmagnetic impurities. The results are import
ant for the case of high critical temperature superconductors doped wi
th nonmagnetic impurities.