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The Mechanism of Surface Decomposition of Tl- and Hg-Containing Superconductors

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Abstract

The surface chemistry of various Tl- and Hg-containing superconducting oxides has been studied by high resolution transmission electron microscopy. The mechanism of surface decomposition of these materials is discussed. High chemical reactivity of the Tl-O and Hg-O layers seem to be the main course of the decomposition. It is proposed that a surface substitution of Tl and Hg may stabilise the structures without losing superconducting properties.

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Authors and Affiliations

  1. IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge, CB 3 0HE, United Kingdom

    W. Zhou & W. Y. Liang

  2. Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom

    D. A. Jefferson

  3. School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom

    G. B. Peacock, A. Asab, I. Gameson & P. P. Edwards

Authors
  1. W. Zhou
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  2. D. A. Jefferson
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  3. W. Y. Liang
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  4. G. B. Peacock
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  5. A. Asab
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  6. I. Gameson
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  7. P. P. Edwards
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Zhou, W., Jefferson, D.A., Liang, W.Y. et al. The Mechanism of Surface Decomposition of Tl- and Hg-Containing Superconductors. Journal of Superconductivity 11, 13–14 (1998). https://doi.org/10.1023/A:1022601022333

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  • DOI: https://doi.org/10.1023/A:1022601022333

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