Higher trapped field over 5 T on HTSC bulk by modified pulse field magnetizing

Hiroyuki Fujishiro, Tatsuya Tateiwa, Atsushi Fujiwara, Tetsuo Oka, Hidemi Hayashi

Research output: Contribution to journalArticle

130 Citations (Scopus)

Abstract

The trapped field B T P = 5.20 T has been realized on the GdBaCuO bulk superconductor by a modified multi pulse technique combined with a stepwise cooling (MMPSC), which surpassed the previous highest record of B T P = 4.47 T. At the first stage, a small amount of the magnetic field ∼1 T was trapped at the bulk center with a concave field distribution at a high starting temperature T s ∼ 45 K by the low pulse field application B ex ∼ 4.5 T. Following the first stage, the higher field of B ex ∼ 6.7 T was applied at a lower T s ∼ 30 K at the second stage. The concave trapped field profile over the bulk at the first stage and the optimization of the higher applied pulse field at the second stage are key points to enhance B T above 5 T.

Original languageEnglish
Pages (from-to)334-338
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - 2006 Oct 1
Externally publishedYes

    Fingerprint

Keywords

  • Bulk superconductor
  • Pulse field magnetizing
  • Temperature rise
  • Trapped field

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this