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Superconductivity at 103 K in CdBa2(Ca0.7Y0.3)Cu2O y

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Abstract

A cadmium analogue of the mercury system with nominal composition CdBa2(Ca1−xYx)Cu2Oy has been synthesized. Thex=0 samples contain about 12 vol.% of the 1212 phase but are not superconducting. Thex=0.3 samples are superconducting atT on = 103 K. The EDX analysis of 18 microcrystals shows a broad cationic distribution of the different components. The observed broad superconducting transition is attributed to the variousT c of the different microcrystals.

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Authors and Affiliations

  1. Institute of Solid State Physics, 1784, Sofia, Bulgaria

    N. Balchev & V. Lovchinov

  2. Higher Institute of Chemical Technical Technology, 1156, Sofia, Bulgaria

    E. Gattef & A. Staneva

  3. Institute of General and Inorganic Chemistry, 1040, Sofia, Bulgaria

    K. Konstantinov

  4. Electroheat Ltd., Botunetz District, 1870, Sofia, Bulgaria

    J. Pirov

Authors
  1. N. Balchev
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  2. V. Lovchinov
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  3. E. Gattef
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  4. A. Staneva
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  5. K. Konstantinov
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  6. J. Pirov
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Balchev, N., Lovchinov, V., Gattef, E. et al. Superconductivity at 103 K in CdBa2(Ca0.7Y0.3)Cu2O y . J Supercond 8, 329–331 (1995). https://doi.org/10.1007/BF00728166

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  • DOI: https://doi.org/10.1007/BF00728166

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