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A search for a low temperature phase transition prior to superconducting behavior in the YBa2Cu3O7 compound

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Abstract

We report the results of a systematic examination of the lattice parameters for the YBa2Cu3O7 compound in the 100 K to 110 K temperature range by means of high resolution synchrotron x-ray powder diffraction techniques. The data indicate a linear decrease in the lattice parameters with decreasing temperature over this temperature range. An observed asymmetric broadening of the diffraction peaks is explained by the presence of residual stress in the lattice.

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Authors and Affiliations

  1. Institute for Ceramic Superconductivity, New York State College of Ceramics at Alfred University, 14802-1296, Alfred, New York, USA

    M. A. Rodriguez, D. P. Matheis, S. S. Bayya, J. J. Simmins & R. L. Snyder

  2. Physics Department, Brookhaven National Laboratory, 11973, Upton, New York, USA

    D. E. Cox

Authors
  1. M. A. Rodriguez
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  2. D. P. Matheis
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  3. S. S. Bayya
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  4. J. J. Simmins
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  5. R. L. Snyder
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  6. D. E. Cox
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Rodriguez, M.A., Matheis, D.P., Bayya, S.S. et al. A search for a low temperature phase transition prior to superconducting behavior in the YBa2Cu3O7 compound. Journal of Materials Research 5, 1799–1801 (1990). https://doi.org/10.1557/JMR.1990.1799

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  • DOI: https://doi.org/10.1557/JMR.1990.1799

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