Title: On the theory of high-T_c superconductivity of doped cuprates
Author(s):

	Y.G. Pogorelov (IFIMUP-IN, Departamento de Física e Astronomia, Universidade do Porto, Porto, Portugal) ,
	V.M. Loktev (Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine, 14b Metrologichna St., 03143 Kyiv, Ukraine; National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", 37 Peremohy Ave., 03056 Kyiv, Ukraine)

A theoretical analysis is presented on possible effects of disorder by dopants in high-temperature superconducting cuprate perovskites, to define their basic spectra of spin and electronic excitations, and the subsequent observable properties, especially doping dependence of superconducting order parameter. The central point in the proposed physical picture is formation of specific impurity subband within the insulating bandgap of initial undoped material, serving as a source for the system metallization and further transition into superconducting state with anisotropic order parameter.

Key words: dopant concentration, cuprate magnetic and electronic spectra, superconductivity, superconducting gap and transition temperature
PACS: 71.30.+h, 71.35.-i, 74.0.-z, 74.20.Rp, 74.62.Dh, 74.72.-h

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