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DIGITAL.CSIC
Article . 2008 . Peer-reviewed
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Study of the variation of the E-I curves in the superconducting to normal transition of Bi-2212 textured ceramics by Pb addition

Authors: Sotelo, Andres; Mora Alfonso, Mario; Madre, M. A.; Amaveda, H.; Diez, J. C.; Angurel, Luis A.; Mayoral Gastón, María del Carmen;

Study of the variation of the E-I curves in the superconducting to normal transition of Bi-2212 textured ceramics by Pb addition

Abstract

[ES] Se han preparado precursores de tipo vítreo en forma de cilindro con composiciones nominales Bi2-xPbxSr2CaCu2Oy, con x = 0, 0.2, 0.4 y 0.6. Estos cilindros se han utilizado como precursores para fabricar barras texturadas por medio de una técnica de fusión zonal inducida por láser (LFZ). Estas barras texturadas se recocieron a diferentes temperaturas y se caracterizaron eléctricamente. Además, se examinó su microestructura para correlacionarla con las propiedades eléctricas medidas. La variación de la transición del estado superconductor al normal se ha relacionado con el dopaje con Pb a través de las curvas E-I. Las mejores transiciones se han obtenido para muestras dopadas con 0.4 Pb.

[EN] Vitreous cylinders with compositions Bi2-xPbxSr2CaCu2Oy, (x = 0, 0.2, 0.4 and 0.6) were prepared and used as precursors to fabricate textured bars through a laser floating zone melting method (LFZ). The resulting textured cylindrical bars were annealed, followed by their electrical characterization. The microstructure was determined and correlated with the electrical measured properties. The influence of Pb doping on the sharpness of the superconducting to normal transition on the E-I curves has been determined. The sharpest transitions have been obtained for samples doped with 0.4Pb.

The authors wish to thank the Spanish Ministry of Science and Technology (MCyT, MAT 2002-04121-C03-02) and the Gobierno de Aragón (Consolidated Research Groups E03 and T12) for financial support.

Peer reviewed

Country
Spain
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Keywords

superconductividad, TP785-869, Superconductivity, superconductivity, Bi-2212, electrical properties, propiedades eléctricas, Electrical properties, Clay industries. Ceramics. Glass, Superconductividad, Pb, Propiedades eléctricas

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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