Field trapping property of Gd-Ba-Cu-O bulk superconductor 140 mm in diameter

Naomichi Sakai, M. Kita, S. Nariki, Muralidhar Miryala, Kazuo Inoue, I. Hirabayashi, Masato Murakami

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We have studied field trapping ability of single grain Gd-Ba-Cu-O bulk superconductor 140 mm in diameter, which was fabricated by using Gd2BaO4 and Ba-Cu-O phase as raw materials. The distribution of the trapped magnetic field showed single domain without serious weak links, when the bulk was field-cooled in 1 T at liquid nitrogen temperature. The maximum trapped magnetic field at 77 K and 65 K were 2.30 T and 3.66 T respectively, when a field of 4 T was applied. From the distribution measurements of magnetic field, it was confirmed that a large amount of flux can be trapped in this large bulk. It was also confirmed that magnetic field can reach a longer distance in a larger bulk than smaller diameter samples.

Original languageEnglish
Pages (from-to)339-342
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - 2006 Oct 1

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trapped magnetic fields
Superconducting materials
trapping
Magnetic fields
magnetic fields
liquid nitrogen
Liquid nitrogen
Raw materials
Fluxes
temperature
Temperature

Keywords

  • Large bulk superconductor
  • RE123
  • Trapped field

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Field trapping property of Gd-Ba-Cu-O bulk superconductor 140 mm in diameter. / Sakai, Naomichi; Kita, M.; Nariki, S.; Miryala, Muralidhar; Inoue, Kazuo; Hirabayashi, I.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 339-342.

Research output: Contribution to journalArticle

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