Evaluation of magnetotransport properties of Au added YBCO ceramics: combination of experimental and advanced theoretical approaches

dc.authorid0000-0001-6305-5349en_US
dc.contributor.authorTerzioğlu, Rıfkı
dc.date.accessioned2021-06-23T19:17:07Z
dc.date.available2021-06-23T19:17:07Z
dc.date.issued2021
dc.departmentBAİBÜ, Mühendislik Fakültesi, Elektrik Elektronik Mühendisliği Bölümüen_US
dc.description.abstractThe purpose of this work is to investigate the change of flux pinning ability, superconducting and physical properties of gold particle addition in the YBa2Cu3O7-x (YBCO) superconducting matrix using temperature dependent resistivity measurements under different applied magnetic fields; namely 0.0, 0.3, 1.0, 2.0, 5.0 and 7.0 T. The room temperature resistivity, transition temperature (T-c), transition width ( increment T-c) and mobile hole carrier concentration values for each sample have separately been determined. In addition, we estimated the field-dependent activation energy (U-0), irreversibility field (mu H-0(irr)), upper critical field (mu H-0(c2)), penetration depth (lambda) and coherence length (xi) with the quantum mechanical approaches related to the fluxoid mechanism for all the samples prepared. It was found that the flux pinning energy values evaluated by Thermally Activated Flux Creep (TAFC) model were determined to be about 11,455 K, 13,413 K, 10,350 K and 9320 K for the undoped, 1 wt%, 5 wt% and 20 wt% Au doped samples, respectively. Moreover, the results obtained showed that the critical temperature, activation energy, irreversibility and upper critical field values were found to depend strongly on the gold content and applied magnetic field strength. The values of mu H-0(irr,)mu H-0(c2,)lambda and xi ( increment T-c) initially exhibited a slight increment (decrement) followed by a decrease (increase) for the samples with the higher gold-doping concentrations. The possible reasons regarding the observed changes in flux pinning and fundamental superconducting properties due to gold-doping in YBCO superconductors were discussed in detail. We indicated that a certain amount of gold doping has an effective role to form the nucleation centers that serve as the active flux pinning regions in the YBCO system so that the quality of interaction between the superconducting grains and inter-granular coupling strength in the adjacent multilayers can increase remarkably.en_US
dc.identifier.doi10.1007/s10854-020-05212-7
dc.identifier.endpage4748
dc.identifier.issn0957-4522
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85099530968en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage4737
dc.identifier.urihttps://doi.org/10.1007/s10854-020-05212-7
dc.identifier.urihttps://hdl.handle.net/20.500.12491/5229
dc.identifier.volume32
dc.identifier.wosWOS:000608967300012en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTerzioğlu, Rıfkı
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal Of Materials Science-Materials In Electronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMagnetotransporten_US
dc.subjectYBCO Ceramics
dc.subjectSuperconducting
dc.titleEvaluation of magnetotransport properties of Au added YBCO ceramics: combination of experimental and advanced theoretical approachesen_US
dc.typeArticleen_US

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