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dc.contributor.authorWeigand, M
dc.contributor.authorSpeller, SC
dc.contributor.authorHughes, GM
dc.contributor.authorRutter, Noel
dc.contributor.authorGrovenor, CRM
dc.contributor.authorDurrell, John
dc.date.accessioned2011-01-05T15:00:40Z
dc.date.available2011-01-05T15:00:40Z
dc.date.issued2010
dc.identifier.citationPhys. Rev. B 81, 174537 (2010)
dc.identifier.issn1098-0121
dc.identifier.urihttp://www.dspace.cam.ac.uk/handle/1810/229236
dc.description.abstracthave investigated single grain boundaries (GBs) isolated in coated conductors produced by metal-organic deposition. When a magnetic field is swept in the film plane, an angle-dependent crossover from boundary to grain limited critical current density J(c) is found. In the force-free orientation, even at fields as high as 8 T, the GBs still limit Jc. We deduce that this effect is a direct consequence of GB meandering. We have employed these single GB results to explain the dependence of Jc of polycrystalline tracks on their width: in-plane measurements become flatter as the tracks are narrowed down. This result is consistent with the stronger GB limitation at field configurations close to force-free found from the isolated boundaries. Our study shows that for certain geometries even at high fields the effect of GBs cannot be neglected.
dc.description.sponsorshipThis work was supported by the Engineering and Physical Sciences Research Council [grant numbers EP/C011546/1 and EP/C011554/1]
dc.language.isoen
dc.publisherAmerican Physical Society
dc.titleIndividual grain boundary properties and overall performance of metal-organic deposition coated conductors
dc.typeArticle
prism.issueIdentifier17
prism.publicationDate2010
prism.publicationNamePhysical Review B: Condensed Matter and Materials Physics
prism.startingPage174537
prism.volume81
rioxxterms.versionofrecord10.1103/PhysRevB.81.174537
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2010
dc.contributor.orcidDurrell, John [0000-0003-0712-3102]
dc.identifier.eissn1550-235X
dc.publisher.urlhttp://link.aps.org/doi/10.1103/PhysRevB.81.174537
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/C011554/1)
pubs.funder-project-idEPSRC (EP/C011546/1)
cam.issuedOnline2010-05-27
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevB.81.174537


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