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Title

Effect of Ce substitution on the magnetoresistivity and flux pinning energy of the Bi2Sr2Ca1-x CexCu2O8+δ superconductors

AuthorsÖzçelik, B.; Kaya, C.; Gündoğmus, H.; Sotelo, A.; Madre, M. A.
Issue Date2014
PublisherSpringer
CitationJournal of Low Temperature Physics 174(3-4): 136-147 (2014)
AbstractIn this study, the effect of Ce doping on the properties of Bi 2Sr2Ca1-x Ce x Cu2O 8+δ ceramic superconductors, with x=0.0, 0.01, 0.05, 0.1, and 0.25, has been investigated. Samples' precursors were prepared using the conventional solid state method and subsequently textured using the Laser Floating Zone technique. The magnetoresistance measurements were studied under various applied magnetic fields. The activation energies, irreversibility fields (H irr ), upper critical fields (H c2) and coherence lengths at 0 K (ξ(0)) were calculated from the resistivity versus temperature (ρ-T) curves, under DC magnetic fields up to 5 T. The thermally activated flux flow model has been applied in order to calculate the flux pinning energies. The results indicated that H c2(0) varied from 416.19 to 115 T and the flux pinning energies varied from 1.46 to 0.042 eV at 0 T. © 2013 Springer Science+Business Media New York.
Publisher version (URL)http://dx.doi.org/10.1007/s10909-013-0954-y
URIhttp://hdl.handle.net/10261/118062
DOI10.1007/s10909-013-0954-y
Identifiersdoi: 10.1007/s10909-013-0954-y
issn: 0022-2291
e-issn: 1573-7357
Appears in Collections:(ICMA) Artículos
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