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Zero resistance of quenched Bi1.5Pb0.4Sb0.1Sr2Ca2Cu3Ox at 140 K

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Abstract

A glass-ceramic of nominal composition Bi1.5Pb0.4Sb0.1Sr2Ca2Cu3Ox was prepared by the melt-quenching method. The subsequent heat treatment of the sample at 860±5°C showedT c(zero) at 94 K. Exposure of the sample for 4 days in air improved itsT c(zero) to 140 K. In another similarly heat-treated sample, a two-step transition in the p-Tcurve at 140 K and at 1 1 1 K, was observed. The superconducting transition appeared to be of a percolative nature.

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Authors and Affiliations

  1. Nuclear Physics Division, Pinstech, Nilore, Pakistan

    J. A. A. Khan, N. M. Butt, A. Mahmood, R. Shaheen, G. Bashir & K. A. Shahid

  2. Nuclear Materials Division, Pinstech, Nilore, Pakistan

    G. Bashir & K. A. Shahid

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  1. J. A. A. Khan
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  2. N. M. Butt
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  3. A. Mahmood
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  4. R. Shaheen
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  5. G. Bashir
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  6. K. A. Shahid
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Khan, J.A.A., Butt, N.M., Mahmood, A. et al. Zero resistance of quenched Bi1.5Pb0.4Sb0.1Sr2Ca2Cu3Ox at 140 K. J Mater Sci 27, 6321–6323 (1992). https://doi.org/10.1007/BF00576279

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  • DOI: https://doi.org/10.1007/BF00576279

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