Record-high trapped magnetic field by pulse field magnetization using GdBaCuO bulk superconductor

Hiroyuki Fuhishiro, Masahiko Kaneyama, Tatsuya Tateiwa, Tetsuo Oka

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A trapped magnetic field BTP as high as 4.47 T, which is the highest reported using pulse field magnetization to date, has been realized on the surface of a GdBaCuO bulk superconductor by a modified multi pulse technique combined with stepwise cooling. Following an introduction of a small amount magnetic flux into the bulk center by applying lower pulse fields Bex = 4.5-4.6T twice at a higher starting temperature Ts = 45-48 K, higher fields of Bex = 6.6-6.7T are applied three times at a lower Ts =28-29 K. The reduction in the temperature rise due to the already existing trapped flux, in addition to the optimization of the higher Bex value at the lower Ts, is a key point in enhancing BTp

Original languageEnglish
Pages (from-to)L1221-L1224
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume44
Issue number37-41
DOIs
Publication statusPublished - 2005 Sep 30

Keywords

  • Bulk superconductor
  • Multi pulse technique
  • Pulse field magnetizing
  • Step cooling
  • Temperature rise
  • Trapped field

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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