The effect of Au diffusion on some physical properties of Bi1.8Pb0.35Sr1.9Ca2.1Cu3Oy superconductors

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dc.authorid0000-0003-3183-7017en_US
dc.authorid0000-0002-0391-5551en_US
dc.authorid0000-0002-3944-0367
dc.contributor.authorTerzioğlu, Cabir
dc.contributor.authorÖztürk, Özgür
dc.contributor.authorBelenli, İbrahim
dc.date.accessioned2021-06-23T19:26:20Z
dc.date.available2021-06-23T19:26:20Z
dc.date.issued2009
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractWe have investigated the effect of the gold diffusion on the crystal structure and superconducting properties of Bi-2223 superconducting samples employing X-ray diffraction (XRD), scanning electron microscopy (SEM), critical transition temperature, critical current density, and room temperature resistivity measurements. Doping of Bi-2223 was carried out by means of gold diffusion from an evaporated gold film on pellets during sintering. XRD patterns and SEM micrographs are used to obtain information about Bi-2223 phase ratio, lattice parameters and grain size, respectively. Au doping of the samples increased the critical transition temperature and the critical current density from 100 +/- 0.2 to 104 +/- 0.2 K and from 40 to 125 A cm(-2), in comparison with those of undoped samples. The gold diffusion in Bi1.8Pb0.35Sr1.9Ca2.1Cu3Oy has been studied over the temperature range of 500-830 degrees C using the technique of successive removal of thin layers and measurement of the sample's conductivity at room temperature. The temperature dependence of the Au diffusion coefficient in the range of 500-830 degrees C was described by the relation D = 5 x 10(-4) exp (-1.09 eV/kBT). The possible reasons for the observed improvements in microstructure and superconducting properties due to Au diffusion were discussed. (c) 2008 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jallcom.2008.03.122
dc.identifier.endpage146en_US
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-60949106848en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage142en_US
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2008.03.122
dc.identifier.urihttps://hdl.handle.net/20.500.12491/6507
dc.identifier.volume471en_US
dc.identifier.wosWOS:000265086300043en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTerzioğlu, Cabir
dc.institutionauthorBelenli, İbrahim
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal Of Alloys And Compoundsen_US
dc.relation.publicationcategoryDiğeren_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAu Diffusionen_US
dc.subjectDiffusion Coefficienten_US
dc.subjectActivation Energyen_US
dc.subjectTransition Temperatureen_US
dc.titleThe effect of Au diffusion on some physical properties of Bi1.8Pb0.35Sr1.9Ca2.1Cu3Oy superconductorsen_US
dc.typeReview Articleen_US

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