On the dependence of superconducting Tc on carrier concentration

J.E. Hirsch and F. Marsiglio, Phys.Lett. A140, 122 (1989).

A striking similarity exists between the dependence of Tc on carrier concentration in transition metal alloys and in oxide superconductors. Such a dependence follows naturally from a mechanism of superconductivity based on pairing of hole carriers through Coulomb interactions.

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