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Superconductivity of (Y1−xREx)Ba2Cu3O7#x2212;δ system

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Abstract

Polycrystalline samples of the superconducting oxides (Y1−x RE x )Ba2Cu3O7−δ (RE = Er and Dy) withx=0, 0.2, 0.4, 0.6, 0.8 and 1.0 were prepared. From the X-ray diffraction and the electrical resistivity measurements, it was found thatT c and the unit cell volume have common peaks nearx≃0.4. Close examination of previously published data on the (Y1−xRE x )Ba2Cu3O7−δ system also indicate that an anomaly exists nearx−0.4. This anomaly is ascribed to an anomalous change ofδ in oxygen nearx≃0.4.

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Authors and Affiliations

  1. Department of Physics, Yonsei University, 120-749, Seoul, Korea

    Kyun Nahm, Jung Soo Kim, Kyeong Bock Lee, Deoug Wha Shong, Bo Young Cha & Chul Koo Kim

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  1. Kyun Nahm
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  2. Jung Soo Kim
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  3. Kyeong Bock Lee
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  4. Deoug Wha Shong
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  5. Bo Young Cha
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  6. Chul Koo Kim
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Nahm, K., Kim, J.S., Lee, K.B. et al. Superconductivity of (Y1−xREx)Ba2Cu3O7#x2212;δ system. J Mater Sci 25, 1762–1764 (1990). https://doi.org/10.1007/BF01045381

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  • DOI: https://doi.org/10.1007/BF01045381

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