Flux pinning in melt grown LRE123 superconductors

M. Murakami; N. Sakai; T. Higuchi; N. Chikumoto; S. I. Yoo

doi:10.1007/BF00753952

Flux pinning in melt grown LRE123 superconductors

M. Murakami, N. Sakai, T. Higuchi, N. Chikumoto, S. I. Yoo

研究成果: Article › 査読

4 被引用数 (Scopus)

抄録

Unlike Y123 which forms only a stoichiometric compound, the light rare earth elements (LRE: La, Nd, Sm, Eu, Gd) form a solid solution LRE_1+xBa_2-xCu₃O_y. When LRE123 superconductors are melt-processed in a reduced oxygen atmosphere, they exhibit high T_c's and large J_c values in high magnetic fields associated with a second peak effect. We believe that such a behavior is closely related to the presence of a LRE-Ba solid solution. In this paper we propose the flux pinning mechanism of LRE 123, and then discuss the source of the peak effect.

本文言語	English
ページ（範囲）	1751-1760
ページ数	10
ジャーナル	Journal of Low Temperature Physics
巻	105
号	5-6
DOI	https://doi.org/10.1007/BF00753952
出版ステータス	Published - 1996 1月 1
外部発表	はい

ASJC Scopus subject areas

原子分子物理学および光学
材料科学（全般）
凝縮系物理学

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AU - Murakami, M.

AU - Sakai, N.

AU - Higuchi, T.

AU - Chikumoto, N.

AU - Yoo, S. I.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Unlike Y123 which forms only a stoichiometric compound, the light rare earth elements (LRE: La, Nd, Sm, Eu, Gd) form a solid solution LRE1+xBa2-xCu3Oy. When LRE123 superconductors are melt-processed in a reduced oxygen atmosphere, they exhibit high Tc's and large Jc values in high magnetic fields associated with a second peak effect. We believe that such a behavior is closely related to the presence of a LRE-Ba solid solution. In this paper we propose the flux pinning mechanism of LRE 123, and then discuss the source of the peak effect.

AB - Unlike Y123 which forms only a stoichiometric compound, the light rare earth elements (LRE: La, Nd, Sm, Eu, Gd) form a solid solution LRE1+xBa2-xCu3Oy. When LRE123 superconductors are melt-processed in a reduced oxygen atmosphere, they exhibit high Tc's and large Jc values in high magnetic fields associated with a second peak effect. We believe that such a behavior is closely related to the presence of a LRE-Ba solid solution. In this paper we propose the flux pinning mechanism of LRE 123, and then discuss the source of the peak effect.

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Flux pinning in melt grown LRE123 superconductors

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