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dc.contributor.authorÖztürk, K.
dc.contributor.authorÇelik, S.
dc.contributor.authorYanmaz, E.
dc.date.accessioned2020-12-19T20:12:40Z
dc.date.available2020-12-19T20:12:40Z
dc.date.issued2008
dc.identifier.issn0925-8388
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2007.08.070
dc.identifier.urihttps://hdl.handle.net/11436/3916
dc.description.abstractThe resistance transitions of Gd-diffused polycrystalline Y123 samples have been measured as a function of temperature and magnetic field. It is deduced from experimental results that the activation energy increases when the diffusion annealing temperature increases and also the activation energy of Gd-diffused samples are larger than that undoped Y123 sample. The magnetic field dependence of U follows a power law, i.e. U ? H-?, with the values of ? are 0.42, 0.56 and 0.61, respectively, for pure Y123, and Gd-diffused Y123 at 800 and 900 °C. The changing of ? values from 0.42 to 0.61 imply that the thermally activated dissipative resistivity is directly associated with pinning mechanism changes from intrinsic planar defects pinning to extrinsic point defects pinning because of large Gd content into Y123 sample by the means of diffusion annealing temperature increasing. In this paper, the possible reasons responsible for the effect of Gd-diffusion on the pinning behaviors are discussed. © 2007 Elsevier B.V. All rights reserved.en_US
dc.language.isoengen_US
dc.publisher0-Belirleneceken_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectActivation energyen_US
dc.subjectGd-diffusionen_US
dc.subjectPinning propertiesen_US
dc.subjectYBCO superconductoren_US
dc.titleGadolinium diffusion-doping for enhancing activation energy in superconducting YBa2Cu3O7-xen_US
dc.typearticleen_US
dc.contributor.departmentRTEÜen_US
dc.identifier.doi10.1016/j.jallcom.2007.08.070
dc.identifier.volume462en_US
dc.identifier.issue01.Feben_US
dc.identifier.startpage19en_US
dc.identifier.endpage23en_US
dc.relation.journalJournal of Alloys and Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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