The trapped field of YBCO bulk superconducting magnets

K. Nagashima; T. Higuchi; J. Sok; S. I. Yoo; H. Fujimoto; M. Murakami

doi:10.1016/S0011-2275(97)00058-1

The trapped field of YBCO bulk superconducting magnets

K. Nagashima, T. Higuchi, J. Sok, S. I. Yoo, H. Fujimoto, M. Murakami

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

We have measured trapped field distributions by scanning a Hall probe on various rectangular YBCO bulk superconductors and studied the effects of field dependence of J_c bulk thickness and bulk size on the trapped field. The trapped field could be increased by increasing the bulk thickness and size. However, a saturation was observed for the maximum thickness. We also calculated the distribution of trapped field taking account of the field dependence of J_c. Experimental trapped field distributions were in good agreement with our calculated values when we used the J_c-B curves obtained from a d.c. magnetization measurement for samples.

Original language	English
Pages (from-to)	577-581
Number of pages	5
Journal	Cryogenics
Volume	37
Issue number	10
DOIs	https://doi.org/10.1016/S0011-2275(97)00058-1
Publication status	Published - 1997 Oct
Externally published	Yes

Keywords

Bulk superconducting magnet, Hall probe
Critical state model
J-B curves
Trapped field
YBCO

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/S0011-2275(97)00058-1

Cite this

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title = "The trapped field of YBCO bulk superconducting magnets",

abstract = "We have measured trapped field distributions by scanning a Hall probe on various rectangular YBCO bulk superconductors and studied the effects of field dependence of Jc bulk thickness and bulk size on the trapped field. The trapped field could be increased by increasing the bulk thickness and size. However, a saturation was observed for the maximum thickness. We also calculated the distribution of trapped field taking account of the field dependence of Jc. Experimental trapped field distributions were in good agreement with our calculated values when we used the Jc-B curves obtained from a d.c. magnetization measurement for samples.",

keywords = "Bulk superconducting magnet, Hall probe, Critical state model, J-B curves, Trapped field, YBCO",

author = "K. Nagashima and T. Higuchi and J. Sok and Yoo, {S. I.} and H. Fujimoto and M. Murakami",

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T1 - The trapped field of YBCO bulk superconducting magnets

AU - Nagashima, K.

AU - Higuchi, T.

AU - Sok, J.

AU - Yoo, S. I.

AU - Fujimoto, H.

AU - Murakami, M.

PY - 1997/10

Y1 - 1997/10

N2 - We have measured trapped field distributions by scanning a Hall probe on various rectangular YBCO bulk superconductors and studied the effects of field dependence of Jc bulk thickness and bulk size on the trapped field. The trapped field could be increased by increasing the bulk thickness and size. However, a saturation was observed for the maximum thickness. We also calculated the distribution of trapped field taking account of the field dependence of Jc. Experimental trapped field distributions were in good agreement with our calculated values when we used the Jc-B curves obtained from a d.c. magnetization measurement for samples.

AB - We have measured trapped field distributions by scanning a Hall probe on various rectangular YBCO bulk superconductors and studied the effects of field dependence of Jc bulk thickness and bulk size on the trapped field. The trapped field could be increased by increasing the bulk thickness and size. However, a saturation was observed for the maximum thickness. We also calculated the distribution of trapped field taking account of the field dependence of Jc. Experimental trapped field distributions were in good agreement with our calculated values when we used the Jc-B curves obtained from a d.c. magnetization measurement for samples.

KW - Bulk superconducting magnet, Hall probe

KW - Critical state model

KW - J-B curves

KW - Trapped field

KW - YBCO

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The trapped field of YBCO bulk superconducting magnets

Abstract

Keywords

ASJC Scopus subject areas

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