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Magnetization studies of the high-T c compound Y 1Ba2Cu3Oz

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Abstract

The superconductive state magnetization of the high-T c compound Y1Ba2Cu3Oz has been investigated. Single-phase, polycrystalline samples of this archetype were prepared by solidstate reaction. The onset of the superconductive transition, measured magnetically, was 90.7 K. In addition to low-field dc magnetization results, measurements of the magnetic critical current density J c (H,T) are presented as a function of magnetic field and temperature. The low values of J c, especially at high temperature, are discussed in terms of intergranular supercurrents that flow within individual grains in superconductive layers of reduced dimensionality.

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Authors and Affiliations

  1. Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831-6061, USA

    J. R. Thompson, D. K. Christen, S. T. Sekula & J. Brynestad

  2. Department of Physics, University of Tennessee, Knoxville, Tennessee, 37996-1200, USA

    J. R. Thompson & Y. C. Kim

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  1. J. R. Thompson
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  2. D. K. Christen
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  3. S. T. Sekula
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  4. J. Brynestad
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  5. Y. C. Kim
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Thompson, J.R., Christen, D.K., Sekula, S.T. et al. Magnetization studies of the high-T c compound Y 1Ba2Cu3Oz . Journal of Materials Research 2, 779–782 (1987). https://doi.org/10.1557/JMR.1987.0779

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  • DOI: https://doi.org/10.1557/JMR.1987.0779

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