Flux pinning sites in melt-processed YBaCuo superconductors

M. Murakami; H. Fujimoto; K. Yamaguchi; N. Nakamura; N. Koshizuka; S. Tanaka

doi:10.1080/01411599308207761

Flux pinning sites in melt-processed YBaCuo superconductors

M. Murakami, H. Fujimoto, K. Yamaguchi, N. Nakamura, N. Koshizuka, S. Tanaka

研究成果: Article › 査読

3 被引用数 (Scopus)

抄録

Melt processed YBaCuO superconductors exhibit high J_c values at 77 K and large magnetic fields. However, flux pinning sites which are responsible for such high J_c values are still unclear. Several candidates have been proposed as flux pinning sites, e.g., twin planes, oxygen defects, stacking faults, cracks, normal inclusions and dislocations. In this paper, we compare the effectiveness of these defects and find that Y₂BaCuO₅ inclusions and stacking faults are the most effective pinning centers in well-annealed melt-grown YBaCuO.

本文言語	English
ページ（範囲）	69-78
ページ数	10
ジャーナル	Phase Transitions
巻	41
号	1-4
DOI	https://doi.org/10.1080/01411599308207761
出版ステータス	Published - 1993 1月 1
外部発表	はい

ASJC Scopus subject areas

器械工学
材料科学（全般）

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AU - Tanaka, S.

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AB - Melt processed YBaCuO superconductors exhibit high Jc values at 77 K and large magnetic fields. However, flux pinning sites which are responsible for such high Jc values are still unclear. Several candidates have been proposed as flux pinning sites, e.g., twin planes, oxygen defects, stacking faults, cracks, normal inclusions and dislocations. In this paper, we compare the effectiveness of these defects and find that Y2BaCuO5 inclusions and stacking faults are the most effective pinning centers in well-annealed melt-grown YBaCuO.

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KW - YBaCuO

KW - flux pinning

KW - pinning centers

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Flux pinning sites in melt-processed YBaCuo superconductors

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