Influence of porosity on the critical currents of trifluoroacetate-MOD YBa2Cu3O7 films

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dc.contributor.authorCastaño Linares, Óscar
dc.contributor.authorCavallaro, Andrea
dc.contributor.authorPalau Masoliver, Anna
dc.contributor.authorGonzález, J. C.
dc.contributor.authorRossell, Marta Dàcil
dc.contributor.authorPuig, Teresa
dc.contributor.authorPiñol, S.
dc.contributor.authorMestres Andreu, Narcís
dc.contributor.authorSandiumenge Ortiz, Felip
dc.contributor.authorPomar Barbeito, Alberto
dc.contributor.authorObradors, Xavier
dc.date.accessioned2017-11-10T17:03:05Z
dc.date.available2017-11-10T17:03:05Z
dc.date.issued2003-06-02
dc.date.updated2017-11-10T17:03:05Z
dc.description.abstractThe influence of porosity on the superconducting properties have been investigated on YBa/sub 2/Cu/sub 3/O/sub 7/ thin films deposited on LaAlO/sub 3/ [100] substrates by the so-called Trifluoroacetate (TFA) route. Micro-Raman spectroscopy have been used to determine the concentration of c-axis grains /spl delta/ in different samples and their influence on the final film porosity as observed from SEM imaging. This has been compared with measurements of resistivity and critical currents in the same samples. We prove that this /spl delta/ fraction is the main parameter controlling the porosity and hence the normal-state resistivity of the thin films. The optimization of the microstructure of these YBa/sub 2/Cu/sub 3/O/sub 7/ TFA films allow to have high critical currents : J/sub c/ = 3 /spl times/ 10/sup 6/ A/cm/sup 2/ at 77 K.
dc.format.extent4 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec674088
dc.identifier.issn1051-8223
dc.identifier.urihttps://hdl.handle.net/2445/117634
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1109/TASC.2003.811832
dc.relation.ispartofIEEE Transactions on Applied Superconductivity, 2003, vol. 13, num. 2, p. 2504-2507
dc.relation.urihttps://doi.org/10.1109/TASC.2003.811832
dc.rights(c) Institute of Electrical and Electronics Engineers (IEEE), 2003
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Enginyeria Electrònica i Biomèdica)
dc.subject.classificationPel·lícules fines
dc.subject.classificationPorositat
dc.subject.classificationSuperconductivitat
dc.subject.classificationRevestiments
dc.subject.otherThin films
dc.subject.otherPorosity
dc.subject.otherSuperconductivity
dc.subject.otherCoatings
dc.titleInfluence of porosity on the critical currents of trifluoroacetate-MOD YBa2Cu3O7 films
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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