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The effect of Sb concentration on the superconducting properties and phase composition of Bi-Pb-Sb-Sr-Ca-Cu oxide materials

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Zeitschrift für Physik B Condensed Matter

Abstract

The effect of Sb superconducting materials with nominal composition Bi1.6Pb0.4−x Sb x Sr2Ca2Cu3O y (x=0.01–0.14) and Bi1.5Pb0.5−x Sb x Sr2Ca2Cu3O y (x=0.025–0.12) has been investigated. These materials were subjected to DTA, ICP emission spectrometry, SEM, XRD and electric resistance measurements. It was found that the introduction of Sb raises the melting temperature of the material, it also raisesT c (up to 110K) at several defined stoichiometric ratios. A certain lack of correspondence between the 2223 phase volume and theT c value was noticed and a possible explanation has been proposed.

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Authors and Affiliations

  1. Department of Semiconductors, Higher Institute of Chemical Technology, Kl. Ohridski ave 8, BG-1156, Sofia, Bulgaria

    K. Konstantinov, S. Karbanov & V. Vassilev

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  1. K. Konstantinov
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  2. S. Karbanov
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  3. V. Vassilev
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Konstantinov, K., Karbanov, S. & Vassilev, V. The effect of Sb concentration on the superconducting properties and phase composition of Bi-Pb-Sb-Sr-Ca-Cu oxide materials. Z. Physik B - Condensed Matter 81, 151–154 (1990). https://doi.org/10.1007/BF01309343

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  • DOI: https://doi.org/10.1007/BF01309343

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