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Fluorination of Underdoped Mercurocuprate Superconductors

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Abstract

We present the results of a study into the incorporation of fluorine into the mercurocuprate superconductors. In all cases, the effect of fluorination has been to increase the Tc of underdoped superconductors to the maxima reported. This has important ramifications for the role of the interstitial oxygen in the mercurocuprate superconductors. To assist us in our study, we have, additionally, developed a novel synthetic procedure for preparing HgBa2CuO4+δ in a highly underdoped state. Remarkably, this material shows an increase in Tc, upon fluorination, of 60K!

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Authors and Affiliations

  1. School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK

    Graeme B. Peacock, Andrew Fletcher, Ian Gameson & Peter P. Edwards

  2. School of Physics and Space Science, The University of Birmingham, B15 2TT, pUK

    Marcin Slaski

  3. Laboratoire de Cristallographie CNRS, BP 166, 38042, Grenoble Cedex 9, France

    J. J. Capponi

Authors
  1. Graeme B. Peacock
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  2. Andrew Fletcher
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  3. Marcin Slaski
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  4. Ian Gameson
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  5. J. J. Capponi
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  6. Peter P. Edwards
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Peacock, G.B., Fletcher, A., Slaski, M. et al. Fluorination of Underdoped Mercurocuprate Superconductors. Journal of Superconductivity 11, 127–128 (1998). https://doi.org/10.1023/A:1022631323667

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  • DOI: https://doi.org/10.1023/A:1022631323667

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