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High Critical Current Density of a MgB2 Bulk Superconductor High-pressure Synthesized Directly from the Elements

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Abstract

We report the property studies of a MgB2 superconductor with high critical current density. The MgB2 superconductor was readily fabricated through a direct high-pressure synthesis of the respective elements. The obtained high-density MgB2 undergoes a sharp superconducting transition at 39 K. The bulk critical current density (Jc) of the sample was calculated on the basis of Bean’s critical state model, and rather high critical current densities over a wide temperature range were obtained in comparison with the ambient prepared samples. The results highlight that high-pressure sintering would be a promising way to produce and search for this kind of intermetallic boride and the related superconductors.

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Authors and Affiliations

  1. Laboratory for extreme condition physics, Institute of Physics, Center for condensed matter physics, P.O. Box 603, Beijing, 100080, P.R. China

    C-Q. Jin, S-C. Li, J-L. Zhu, F-Y. Li, Z-X. Liu & R-C. Yu

  2. Beijing high pressure research center, Chinese Academy of Sciences, P.O. Box 603, Beijing, 100080, P.R. China

    S-C. Li, J-L. Zhu, F-Y. Li, Z-X. Liu & R-C. Yu

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  1. C-Q. Jin
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  2. S-C. Li
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  3. J-L. Zhu
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  4. F-Y. Li
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  5. Z-X. Liu
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  6. R-C. Yu
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Jin, CQ., Li, SC., Zhu, JL. et al. High Critical Current Density of a MgB2 Bulk Superconductor High-pressure Synthesized Directly from the Elements. Journal of Materials Research 17, 525–527 (2002). https://doi.org/10.1557/JMR.2002.0073

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  • DOI: https://doi.org/10.1557/JMR.2002.0073

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