The effect of inhomogeneous flux penetration into bulk superconductor by pulsed field magnetization

Hirofumi Fukai, Yousuke Kimura, Shinya Nariki, Naomichi Sakai, Mitsuru Izumi, Izumi Hirabayashi

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Pulsed field magnetization (PFM) is a practical method for magnetizing bulk superconductors, but the amount of trapped magnetic flux is usually smaller than that magnetized by the field cooling (FC) method due to the heat generation by the flux motion during pulsed field application. In this study, we magnetized a Y-Ba-Cu-O bulk superconductor grown from a seed which was placed at deviating positions from the centre of the bulk to investigate the effect of inhomogeneous penetration of the flux into the bulk superconductor during the PFM. The maximum trapped field by the PFM was almost the same value as by the FC method. This suggests that the inhomogeneity of the bulk superconductor affects the trapped field on the PFM. The magnetic flux can penetrate into the centre of the bulk even if the applied field is small, which contributes to reducing the extra heat generation due to the flux motion.

本文言語English
ページ(範囲)1179-1182
ページ数4
ジャーナルSuperconductor Science and Technology
18
9
DOI
出版ステータスPublished - 2005 9 1
外部発表はい

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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