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High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects

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dc.citedby40
dc.contributor.authorMele P.en_US
dc.contributor.authorGuzman R.en_US
dc.contributor.authorGazquez J.en_US
dc.contributor.authorPuig T.en_US
dc.contributor.authorObradors X.en_US
dc.contributor.authorSaini S.en_US
dc.contributor.authorYoshida Y.en_US
dc.contributor.authorMukaida M.en_US
dc.contributor.authorIchinose A.en_US
dc.contributor.authorMatsumoto K.en_US
dc.contributor.authorIdries Adam M.en_US
dc.contributor.authorid7006788040en_US
dc.contributor.authorid7103206526en_US
dc.contributor.authorid10142259700en_US
dc.contributor.authorid7006729760en_US
dc.contributor.authorid7102460091en_US
dc.contributor.authorid35278696500en_US
dc.contributor.authorid35402531800en_US
dc.contributor.authorid7005127222en_US
dc.contributor.authorid7103169719en_US
dc.contributor.authorid8059497400en_US
dc.contributor.authorid56483192800en_US
dc.date.accessioned2023-05-29T06:00:51Z
dc.date.available2023-05-29T06:00:51Z
dc.date.issued2015
dc.descriptionBarium zirconate; Epitaxial growth; Flux pinning; High resolution transmission electron microscopy; Magnesia; Nanorods; Pulsed laser deposition; Scanning electron microscopy; Strontium titanates; Superconducting films; Titanium compounds; Transmission electron microscopy; Vortex flow; Yttrium barium copper oxides; Applied magnetic fields; Artificial pinning centers; isotropic pinning; Scanning transmission electron microscopy; Single vortices; Superconducting critical temperatures; Superconducting properties; YBCO film; Copper compoundsen_US
dc.description.abstractWe report the epitaxial growth and superconducting properties of Y2O3-added YBa2Cu3Ox (YBCO) films grown on SrTiO3-buffered MgO substrates by pulsed-laser deposition using surface-modified YBCO targets. Areas of Y2O3 sectors on the YBCO target were increased to 5.44% and 9.22% of the total YBCO pellet in order to find a correlation between the Y2O3 content, morphology, and the pinning properties of YBCO+Y2O3 mixed films. The maximum global pinning forces, FP, at 77 K were 14.3 GN m-3 and 1.15 GN m-3 for the Y2O3 5.44A% and 9.22A%, respectively. The 5.44A% Y2O3-added sample presents a very high value of pinning force at 77 K, approaching the value obtained in YBCO films with added BaZrO3 nanorods, but with less depression in the superconducting critical temperature, Tc. In accordance with scanning transmission electron microscopy (STEM) observations, both films present nanoparticulate Y2O3 dispersed in a YBCO matrix where Y2Ba4Cu8O16 (Y248) intergrowths were also observed. Consistent with the strong pinning theory, the size and distribution of randomly dispersed Y2O3 particles are optimal for the flux pinning of a 5.44A% Y2O3-YBCO film, while in the case of a 9.22A% film, the YBCO matrix is degraded by jam-packed Y248 intergrowth, which leads to a comparatively poor pinning performance. We further used the single-vortex dynamics model to account for vortex pinning in the samples. The 5.44A% Y2O3-YBCO film result shows good agreement with the model fit up to 4 T of the applied magnetic field. � 2015 IOP Publishing Ltd.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo24002
dc.identifier.doi10.1088/0953-2048/28/2/024002
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84921033473
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84921033473&doi=10.1088%2f0953-2048%2f28%2f2%2f024002&partnerID=40&md5=4ff76320a3013b521f697d80b37c301c
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/22417
dc.identifier.volume28
dc.publisherInstitute of Physics Publishingen_US
dc.relation.ispartofAll Open Access, Green
dc.sourceScopus
dc.sourcetitleSuperconductor Science and Technology
dc.titleHigh pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defectsen_US
dc.typeArticleen_US
dspace.entity.typePublication
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