Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O

Hiroyuki Fujimoto, Sang Im Yoo, Takamitsu Higuchi, Yuichi Nakamura, Hiroki Kamijo, Ken Nagashima, Masato Murakami

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Superconducting magnets made of high-Tc superconductors are promising for industrial applications. It is well known that REBa2Cu3O7-x and LRE (light rare-earth) Ba2Cu3O7-x superconductors prepared by melt processes have a high critical current density, Jc, at 77 K and high magnetic fields. Therefore, the materials are very prospective for high magnetic field application as a superconducting permanent/bulk magnet with liquid-nitrogen refrigeration. LREBaCuO bulks, compared with REBaCuO bulks, exhibit a larger Jc in high magnetic fields and a much improved irreversibility field, Hirr, at 77 K. In this study, we discuss the possibility and trapped field properties of a superconducting bulk magnet, as well as the melt processing for bulk superconductors and their characteristic superconducting properties. One of the applications is a superconducting magnet for the future magnetically levitated (Maglev) train.

Original languageEnglish
JournalJournal of the Korean Physical Society
Volume35
Issue numberSUPPL. 2
Publication statusPublished - 1999
Externally publishedYes

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trapped magnetic fields
magnets
superconducting magnets
magnetic fields
liquid nitrogen
critical current
rare earth elements
current density

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fujimoto, H., Yoo, S. I., Higuchi, T., Nakamura, Y., Kamijo, H., Nagashima, K., & Murakami, M. (1999). Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O. Journal of the Korean Physical Society, 35(SUPPL. 2).

Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O. / Fujimoto, Hiroyuki; Yoo, Sang Im; Higuchi, Takamitsu; Nakamura, Yuichi; Kamijo, Hiroki; Nagashima, Ken; Murakami, Masato.

In: Journal of the Korean Physical Society, Vol. 35, No. SUPPL. 2, 1999.

Research output: Contribution to journalArticle

Fujimoto, H, Yoo, SI, Higuchi, T, Nakamura, Y, Kamijo, H, Nagashima, K & Murakami, M 1999, 'Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O', Journal of the Korean Physical Society, vol. 35, no. SUPPL. 2.
Fujimoto H, Yoo SI, Higuchi T, Nakamura Y, Kamijo H, Nagashima K et al. Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O. Journal of the Korean Physical Society. 1999;35(SUPPL. 2).
Fujimoto, Hiroyuki ; Yoo, Sang Im ; Higuchi, Takamitsu ; Nakamura, Yuichi ; Kamijo, Hiroki ; Nagashima, Ken ; Murakami, Masato. / Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O. In: Journal of the Korean Physical Society. 1999 ; Vol. 35, No. SUPPL. 2.
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