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On the suppression of superconductivity in ErBa2Cu3Ox

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Zeitschrift für Physik B Condensed Matter

Abstract

Powder samples of ErBa2Cu3Ox prepared by a desorption-absorption procedure were studied by susceptibility and neutron-diffraction experiments for variousx(6≦x≦7). The suppression of superconductivity does not coincide with the orthorhombic-to-tetragonal phase transition, but with a significant charge redistribution between the Cu−O chains and planes. Upon oxygen removal, asT c (x)→O, step-like anomalies are observed in some bonding lengths and atomic distances, which support an all-electronic mechanism for the oxide superconductivity.

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Authors and Affiliations

  1. Institut für Festkörperforschung, KFA Jülich, Postfach 1913, D-5170, Jülich 1, Federal Republic of Germany

    H. Maletta, E. Pörschke, B. Rupp & P. Meuffels

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  1. H. Maletta
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  2. E. Pörschke
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  3. B. Rupp
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  4. P. Meuffels
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Maletta, H., Pörschke, E., Rupp, B. et al. On the suppression of superconductivity in ErBa2Cu3Ox . Z. Physik B - Condensed Matter 77, 181–184 (1989). https://doi.org/10.1007/BF01313660

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  • DOI: https://doi.org/10.1007/BF01313660

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