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High temperature multiple transitions in bismuth-based superconductors

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Abstract

We report observation of possible superconducting transitions at 133 K, 117K and 105 K in Bi-Sr-Ca-Cu-O bulk samples which attain zero resistance state above the liquid nitrogen temperature (Tc(0)) = 80K). The transition at 105 K is prominent and shows a significant drop in the sample resistance. X-ray data depict characteristic superconducting peak at 20 = 5–6°. All the specimens show Meissner effect when cooled in liquid nitrogen.

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References

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Authors and Affiliations

  1. Semiconductor Devices Area, Central Electronics Engineering Research Institute, 333031, Pilani, India

    Ram P Gupta, W S Khokle, J P Pachauri & C C Tripathi

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  1. Ram P Gupta
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  2. W S Khokle
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  3. J P Pachauri
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  4. C C Tripathi
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Gupta, R.P., Khokle, W.S., Pachauri, J.P. et al. High temperature multiple transitions in bismuth-based superconductors. Pramana - J. Phys. 32, L299–L301 (1989). https://doi.org/10.1007/BF02879022

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  • DOI: https://doi.org/10.1007/BF02879022

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