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 B T P 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 B ex = 4.5-4.6T twice at a higher starting temperature T s = 45-48 K, higher fields of B ex = 6.6-6.7T are applied three times at a lower T s =28-29 K. The reduction in the temperature rise due to the already existing trapped flux, in addition to the optimization of the higher B ex value at the lower T s, is a key point in enhancing B T p

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume44
Issue number37-41
DOIs
Publication statusPublished - 2005 Sep 30
Externally publishedYes

Fingerprint

trapped magnetic fields
Superconducting materials
Magnetization
Magnetic fields
magnetization
Magnetic flux
pulses
Fluxes
Cooling
Temperature
magnetic flux
cooling
optimization
temperature

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Record-high trapped magnetic field by pulse field magnetization using GdBaCuO bulk superconductor. / Fuhishiro, Hiroyuki; Kaneyama, Masahiko; Tateiwa, Tatsuya; Oka, Tetsuo.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 44, No. 37-41, 30.09.2005.

Research output: Contribution to journalArticle

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