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Transport critical current density of melt-processed YBCO(x) bulk superconductors.

Author(s) : KIMURA K., MORITA M., TANAKA M., TAKEBAYASHI S., TROUILLEUX L., MIYAMOTO K., HASHIMOTO M., WATANABE K., AWAJI S., KOBAYASHI N.

Type of article: Article

Summary

Transport critical currents were measured by a direct-current four probe method. The angular dependence of critical-current density upon the direction of applied magnetic field showed some characteristic features which could not be described by simple flux pinning. This indicates that anisotropic pinning is relatively strong. The pinning caused by the layered structure, twin boundaries and oxygen deficiency, as well as pinning by the Y(2)BCO(5) phase, play important roles in determining the critical-current density of the melt-processed YBCO(x) bulk superconductors.

Details

  • Original title: Transport critical current density of melt-processed YBCO(x) bulk superconductors.
  • Record ID : 1994-0029
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 5
  • Publication date: 1993/05

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