Abstract

We have calculated the superconducting transition temperature, Tc, of high-Tc cuprates within the strong-coupling Bardeen-Cooper-Schrieffer (BCS) formalism. The hole pairing was attributed to the antiferromagnetic spin fluctuations. Such fluctuations are believed to exist over the whole superconducting hole concentrations, p, extending from the underdoped to the overdoped regimes. A complete consideration of the p-dependences of the antiferromagnetic spin excitation spectral weight, spin fluctuation frequency, ωsf, and the effect of the pseudogap on the electronic density of states seems to reproduce the experimental Tc(p) satisfactorily over the entire doping range. The possible implications of this finding are discussed in detail.      Keywords: Cuprate superconductors; Superconducting Tc;  Spin fluctuations; Pseudogap. © 2009 JSR Publications. ISSN: 2070-0237(Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v1i1.1181

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