Modeling of the Doping Dependent Superconducting Transition Temperatures for Cuprates: Role of Antiferromagnetic Fluctuations

Authors

  • Saleh Hasan Naqib Department of Physics, Rajshahi University

DOI:

https://doi.org/10.3329/jsr.v1i1.1181

Keywords:

Cuprate superconductors, Superconducting Tc, Spin fluctuations, Pseudogap

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, Ïsf, 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

Downloads

Download data is not yet available.
Abstract
132
PDF
123

Author Biography

Saleh Hasan Naqib, Department of Physics, Rajshahi University

Associate Professor

Department of Physics

Rajshahi University

Downloads

Published

2008-12-12

How to Cite

Naqib, S. H. (2008). Modeling of the Doping Dependent Superconducting Transition Temperatures for Cuprates: Role of Antiferromagnetic Fluctuations. Journal of Scientific Research, 1(1), 14–21. https://doi.org/10.3329/jsr.v1i1.1181

Issue

Vol. 1 No. 1 (2009)

Section

Section A: Physical and Mathematical Sciences

License

© Journal of Scientific Research

Creative Commons License

Articles published in the "Journal of Scientific Research" are Open Access articles under a Creative Commons Attribution-ShareAlike 4.0 International license (CC BY-SA 4.0). This license permits use, distribution and reproduction in any medium, provided the original work is properly cited and initial publication in this journal. In addition to that, users must provide a link to the license, indicate if changes are made and distribute using the same license as original if the original content has been remixed, transformed or built upon.