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Comparative studies for the physical properties of superconducting (BaSnO3)x(Bi,Pb)-2223 samples determined from excess conductivity and thermoelectric power analysis

Abstract

To study the effects of BaSnO3 nanoparticles addition to BSCCO superconducting system, five polycrystalline samples with general formula (BaSnO3)x(Bi1.6Pb0.4)Sr2Ca2Cu3O10−δ (BaSnO3)x(Bi,Pb)-2223, with $0.00\leqslant x({\rm{wt}} \% )\leqslant 1.5,$ were prepared by the conventional solid-state reaction technique. X-ray diffraction (XRD, scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDX) were used for structural characterization of the samples. The room temperature x-ray diffraction patterns as well as the SEM/EDX micrographs of the samples indicate the formation of the major Bi-(2223) phase. To get into the conduction mechanisms of (BaSnO3)x(Bi,Pb)-2223, it was important to study the electrical resistivity with superconducting induced fluctuations as well as thermoelectric power. By applying several theoretical models to the analysis of experimental results, a number of physical parameters was extracted such as superconducting-transition temperature Tc, coherence length along c-axis ξ c(0), effective layer thickness d, Fermi velocity vF as well as Fermi energy EF were calculated as a function of BaSnO3-content.

Author(s)

Khulud Habanjar

Coauthor(s)

F El Haj Hassan

Journal/Conference Information

Materials Research Express,DOI: Materials Research Express PAPER Comparative studies for the physical properties of superconducting (BaSnO3)x(Bi,Pb)-2223 samples determined from excess conductivity and thermoelectric power analysis Khulud Habanjar1, F El Haj Hassan2 and R Awad1 Published 26 June 2019 • © 2019 IOP Publishing Ltd Materials Research Express, Volume 6, Number 9 27 Total downloads Article has an altmetric score of 1 Turn on MathJax Get permission to re-use this article Share this article Share this content via email Share on Facebook Share on Twitter Share on Google+ Share on Mendeley Hide article information Author e-mails khulud_h@live.com Author affiliations 1 Physics Department, Faculty of Science, Beirut Arab University (BAU), Beirut, Lebanon 2 Research Platform for Environmental Sciences (PRASE)-DSST, Lebanese University, Beirut Lebanon ORCID iDs Khulud Habanjar https://orcid.org/0000-0002-8831-8608 F El Haj Hassan https://orcid.org/0000-0001-8184-3373 Dates Received 15 April 2019 Accepted 19 June 2019 Accepted Manuscript online 19 June 2019 Published 26 June 2019 Check for updates using Crossmark Peer review information Method: Double-blind Revisions: 1 Screened for originality? Yes Citation Khulud Habanjar et al 2019 Mater. Res. Express 6 096001 Create citation alert DOI https://doi.org/10.1088/2053-1591/ab2b07, Volume: 6, Issue: -, Pages Range: 096-001,