Flux pinning sites in melt-processed YBaCuo superconductors

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

doi:10.1080/01411599308207761

Flux pinning sites in melt-processed YBaCuo superconductors

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

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

9 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	69-78
Number of pages	10
Journal	Phase Transitions
Volume	41
Issue number	1-4
DOIs	https://doi.org/10.1080/01411599308207761
Publication status	Published - 1993 Jan 1
Externally published	Yes

Keywords

flux pinning
Melt process
pinning centers
YBaCuO

ASJC Scopus subject areas

Materials Science(all)
Instrumentation

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10.1080/01411599308207761

Cite this

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abstract = "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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AU - Murakami, Masato

AU - Fujimoto, H.

AU - Yamaguchi, K.

AU - Nakamura, N.

AU - Koshizuka, N.

AU - Tanaka, S.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - 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.

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.

KW - flux pinning

KW - Melt process

KW - pinning centers

KW - YBaCuO

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Flux pinning sites in melt-processed YBaCuo superconductors

Abstract

Keywords

ASJC Scopus subject areas

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