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

N. Sakai; M. Kita; S. Nariki; M. Muralidhar; K. Inoue; I. Hirabayashi; M. Murakami

doi:10.1016/j.physc.2006.04.078

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

N. Sakai, M. Kita, S. Nariki, M. Muralidhar, K. Inoue, I. Hirabayashi, M. Murakami

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

28 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 language	English
Pages (from-to)	339-342
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	445-448
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2006.04.078
Publication status	Published - 2006 Oct 1

Keywords

Large bulk superconductor
RE123
Trapped field

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2006.04.078

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title = "Field trapping property of Gd-Ba-Cu-O bulk superconductor 140 mm in diameter",

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.",

keywords = "Large bulk superconductor, RE123, Trapped field",

author = "N. Sakai and M. Kita and S. Nariki and M. Muralidhar and K. Inoue and I. Hirabayashi and M. Murakami",

note = "Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO).",

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doi = "10.1016/j.physc.2006.04.078",

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T1 - Field trapping property of Gd-Ba-Cu-O bulk superconductor 140 mm in diameter

AU - Sakai, N.

AU - Kita, M.

AU - Nariki, S.

AU - Muralidhar, M.

AU - Inoue, K.

AU - Hirabayashi, I.

AU - Murakami, M.

N1 - Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO).

PY - 2006/10/1

Y1 - 2006/10/1

N2 - 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.

AB - 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.

KW - Large bulk superconductor

KW - RE123

KW - Trapped field

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

Abstract

Keywords

ASJC Scopus subject areas

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