The trapped field of YBCO bulk superconducting magnets

K. Nagashima, T. Higuchi, J. Sok, S. I. Yoo, H. Fujimoto, M. Murakami

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

We have measured trapped field distributions by scanning a Hall probe on various rectangular YBCO bulk superconductors and studied the effects of field dependence of Jc bulk thickness and bulk size on the trapped field. The trapped field could be increased by increasing the bulk thickness and size. However, a saturation was observed for the maximum thickness. We also calculated the distribution of trapped field taking account of the field dependence of Jc. Experimental trapped field distributions were in good agreement with our calculated values when we used the Jc-B curves obtained from a d.c. magnetization measurement for samples.

Original languageEnglish
Pages (from-to)577-581
Number of pages5
JournalCryogenics
Volume37
Issue number10
DOIs
Publication statusPublished - 1997 Oct
Externally publishedYes

Keywords

  • Bulk superconducting magnet, Hall probe
  • Critical state model
  • J-B curves
  • Trapped field
  • YBCO

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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    Nagashima, K., Higuchi, T., Sok, J., Yoo, S. I., Fujimoto, H., & Murakami, M. (1997). The trapped field of YBCO bulk superconducting magnets. Cryogenics, 37(10), 577-581. https://doi.org/10.1016/S0011-2275(97)00058-1