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

doi:10.1016/j.physc.2008.05.140

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 journal › Article

17 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 language	English
Pages (from-to)	1461-1464
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	468
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2008.05.140
Publication status	Published - 2008 Sep 15

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Keywords

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

ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Suzuki, T., Araki, S., Koibuchi, K., Ogawa, K., Sawa, K., Takeuchi, K., ... 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, 468(15-20), 1461-1464. https://doi.org/10.1016/j.physc.2008.05.140

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 journal › Article

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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AB - 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.

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10.1016/j.physc.2008.05.140