A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system

T. Suzuki, S. Araki, K. Koibuchi, K. Ogawa, K. Sawa, K. Takeuchi, Masato Murakami, K. Nagashima, H. Seino, Y. Miyazaki, Naomichi Sakai, I. Hirabayashi, Y. Iwasa

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We have studied the levitation force of a Gd-Ba-Cu-O bulk superconductor 60 mm in diameter and 20 mm in thickness with a newly developed superconducting magnet system that can provide high field gradient. The magnet system was composed of two superconducting coils that are co-axially placed, and currents are passed in the opposite direction. To study the effect of radial and vertical magnetic field components on the levitation force and its time relaxation, the superconductor was placed at several locations. It was confirmed that the levitation force is strongly dependent on the radial component of magnetic fields. It was also found that the time relaxation was reduced without sacrificing the levitation force by increasing the radial component of the external field.

Original languageEnglish
Pages (from-to)1461-1464
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - 2008 Sep 15

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levitation
Relaxation time
Superconducting materials
Magnets
magnets
relaxation time
Magnetic fields
Superconducting magnets
superconducting magnets
magnetic fields
coils
gradients
Direction compound
Superconducting coils

Keywords

  • Bulk
  • Flux creep
  • Gd-Ba-Cu-O
  • Levitation force
  • Relaxation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system. / Suzuki, T.; Araki, S.; Koibuchi, K.; Ogawa, K.; Sawa, K.; Takeuchi, K.; Murakami, Masato; Nagashima, K.; Seino, H.; Miyazaki, Y.; Sakai, Naomichi; Hirabayashi, I.; Iwasa, Y.

In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 1461-1464.

Research output: Contribution to journalArticle

Suzuki, T, Araki, S, Koibuchi, K, Ogawa, K, Sawa, K, Takeuchi, K, Murakami, M, Nagashima, K, Seino, H, Miyazaki, Y, Sakai, N, Hirabayashi, I & Iwasa, Y 2008, 'A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system', Physica C: Superconductivity and its Applications, vol. 468, no. 15-20, pp. 1461-1464. https://doi.org/10.1016/j.physc.2008.05.140
Suzuki, T. ; Araki, S. ; Koibuchi, K. ; Ogawa, K. ; Sawa, K. ; Takeuchi, K. ; Murakami, Masato ; Nagashima, K. ; Seino, H. ; Miyazaki, Y. ; Sakai, Naomichi ; Hirabayashi, I. ; Iwasa, Y. / A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system. In: Physica C: Superconductivity and its Applications. 2008 ; Vol. 468, No. 15-20. pp. 1461-1464.
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AU - Takeuchi, K.

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