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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1179-1182
Number of pages4
JournalSuperconductor Science and Technology
Volume18
Issue number9
DOIs
Publication statusPublished - 2005 Sep 1
Externally publishedYes

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ASJC Scopus subject areas

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

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