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Relation between superconducting transition temperature and oxygen ordering in YBa2Cu306+x

Nature volume 349, pages 594–596 (1991)Cite this article

Abstract

THE superconducting transition temperature, Tc, of the ceramic high-temperature superconductor YBa2Cu3O6+xis known to depend not only on the oxygen stoichiometry x (0 < x < 1) but also on the specific ordering of the oxygen atoms in the basal CuO planes1–7. Here we present computer simulations of the formation of oxygen-ordered domains of orthorhombic structure in the basal CuO plane using a microscopic model of the oxygen ordering. Together with a minimal-model assumption for the charge transfer, our calculations strongly suggest that it is these domains that are responsible for the characteristic variation of Tc(x). Our results lead to a theoretical prediction of Tc(x) that is in close quantitative agreement with experiments.

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Author notes

  1. Henning Friis Poulsen

    Present address: Solid State Chemistry Division, AT & T Bell Laboratories, Murray Hill, New Jersey, 07974, USA

  2. Henrik Bohrt

    Present address: School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801, USA

Authors and Affiliations

  1. Physics Department, RisØ National Laboratory, DK-4000, Roskilde, Denmark

    Henning Friis Poulsen & Niels Hessel Andersen

  2. Department of Structural Properties of Materials, The Technical University of Denmark, Building 307, DK-2800, Lyngby, Denmark

    Henning Friis Poulsen, JØrgen Vrtting Andersen, Henrik Bohrt & Ole G. Mouritsen

  3. Department of Physical Chemistry, The Technical University of Denmark, Building 307, DK-2800, Lyngby, Denmark

    Ole G. Mouritsen

Authors
  1. Henning Friis Poulsen
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  2. Niels Hessel Andersen
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  3. JØrgen Vrtting Andersen
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  4. Henrik Bohrt
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  5. Ole G. Mouritsen
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Friis Poulsen, H., Hessel Andersen, N., Vrtting Andersen, J. et al. Relation between superconducting transition temperature and oxygen ordering in YBa2Cu306+x. Nature 349, 594–596 (1991). https://doi.org/10.1038/349594a0

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