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Magnetic torque of oriented bulk Bi2212 by the shock-loading method

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Abstract

The magnetic torque of oriented bulk specimen of Bi2Sr2CaCu2O8+δ by the shock-loading method was measured under magnetic fields up to 8 kOe in the temperature range from 4.2 to 100 K. The torque amplitude of the shocked specimen was much larger than that of the as-grown bulk specimen measured as a reference. The angular dependence of the torque was reproduced by assuming the Gauss-type distribution for the crystalline orientation. It became clear that the magnetic torque of the shocked specimen showed the high degree of crystalline orientation in which the c-axis is perpendicular to the pellet disk plane and that the flux pinning perpendicular to the pellet disk plane was enhanced by shock-loading.

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Authors and Affiliations

  1. Department of Physics and Electronics, University of Osaka Prefecture, Gakuen-cho, Sakai, Osaka, 593, Japan

    S. Kawamata & K. Okuda

  2. Institute for Materials Research, Tohoku University, Katahira, Sendai, 980, Japan

    M. Kikuchi, H. Hikosaka & Y. Syono

Authors
  1. S. Kawamata
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  2. K. Okuda
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  3. M. Kikuchi
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  4. H. Hikosaka
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  5. Y. Syono
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Kawamata, S., Okuda, K., Kikuchi, M. et al. Magnetic torque of oriented bulk Bi2212 by the shock-loading method. Journal of Materials Research 10, 2444–2448 (1995). https://doi.org/10.1557/JMR.1995.2444

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  • DOI: https://doi.org/10.1557/JMR.1995.2444

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