Contrasting effects of metal oxide dopants on the superconductivity of YBa2Cu3O7-? ceramics

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dc.authoridOzabaci, Murat/0000-0002-0667-6066
dc.authorwosidOzabaci, Murat/A-2808-2016
dc.contributor.authorOzabaci, Murat
dc.date.accessioned2024-08-04T20:46:53Z
dc.date.available2024-08-04T20:46:53Z
dc.date.issued2019
dc.departmentİnönü Üniversitesien_US
dc.description.abstractBulk superconductor samples of YBa2Cu3O7-delta (YBCO or Y-123), with additions of 0.15 wt% MoO3, TiO2, RuO2 and two different types of Al2O3 compounds, are synthesized by a solid state reaction route. Structural, magnetic and transport properties of the samples are characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), magnetic (M-H, M-T) and magneto-resistivity (MR-T) measurements. SEM investigations show that the addition of the Al2O3 obtained from the alumina crucible (Al2O3-cru) decreases the grain size of the sample which, in turn, degrades the transition temperatures (T-c) and magnetic critical current densities (Jcmag). On the contrary, the addition of the other metal oxides enhances of the samples by a few times and also increases T-c by up to 3 K. EDX analyses of the samples exhibit homogeneous distribution of additions, except for Ru-heterogeneities located around superconducting Y-123 grains. The highest J(c) and T-c values obtained on the RuO2 added sample were attributed to the agglomeration of the Ru-particles, which led to the optimal porosity that supports oxygenation process and intergrain coupling of the structure. From the DC magnetization data, we estimated Jcmagf 3.1 x 10(5) A/cm(2), 2.3 x 10(5) A/cm(2), 2 x 10(5) A/cm(2), 1.5 x 10(5) A/cm(2), 10(5) A/cm(2) and 5.1 x 10(4) A/cm(2) for the RuO2, TiO2, MoO3, Al2O3, undoped and Al2O3-cru added samples at 5 K under 0.25 T, respectively.en_US
dc.identifier.doi10.1007/s10854-019-02403-9
dc.identifier.endpage20204en_US
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue22en_US
dc.identifier.scopus2-s2.0-85074036334en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage20198en_US
dc.identifier.urihttps://doi.org/10.1007/s10854-019-02403-9
dc.identifier.urihttps://hdl.handle.net/11616/98999
dc.identifier.volume30en_US
dc.identifier.wosWOS:000492021600008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
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.subjectMagnetic-Propertiesen_US
dc.subjectYbco Filmsen_US
dc.subjectSubstitutionen_US
dc.subjectIrradiationen_US
dc.subjectTransporten_US
dc.subjectSystemen_US
dc.titleContrasting effects of metal oxide dopants on the superconductivity of YBa2Cu3O7-? ceramicsen_US
dc.typeArticleen_US

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