Pinning properties in melt-processed YbBa2Cu3O7-δ with finely dispersed Yb2BaCuO5 inclusions

Tadashi Mochida; Naomichi Sakai; Sang Im Yoo; Masato Murakami

doi:10.1016/S0921-4534(01)00914-5

Pinning properties in melt-processed YbBa₂Cu₃O_7-δ with finely dispersed Yb₂BaCuO₅ inclusions

Tadashi Mochida, Naomichi Sakai, Sang Im Yoo, Masato Murakami

研究成果: Article › 査読

8 被引用数 (Scopus)

抄録

We have studied the pinning characteristics of melt-processed Yb-Ba-Cu-O, in which Yb₂BaCuO₅ (Yb211) particles are dispersed in the YbBa₂Cu₃O₇ (Yb123) matrix. The sample showed a sharp superconducting transition (T_c) with an onset value of 88.5 K. In spite of its low T_c in the RE123 families (RE=rare earth elements), the sample showed a large shielding current density of 5.5 × 10⁸ A/m² at 77 K and 0 T, which is comparable to those of melt-processed Y-Ba-Cu-O and OCMG-processed Nd-Ba-Cu-O. Analyses reveal that the dominant pinning center of melt-processed Yb-Ba-Cu-O bulk superconductors is Yb211 inclusions.

本文言語	English
ページ（範囲）	229-237
ページ数	9
ジャーナル	Physica C: Superconductivity and its applications
巻	366
号	4
DOI	https://doi.org/10.1016/S0921-4534(01)00914-5
出版ステータス	Published - 2002 2月 1
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/S0921-4534(01)00914-5

他のファイルとリンク

引用スタイル

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title = "Pinning properties in melt-processed YbBa2Cu3O7-δ with finely dispersed Yb2BaCuO5 inclusions",

abstract = "We have studied the pinning characteristics of melt-processed Yb-Ba-Cu-O, in which Yb2BaCuO5 (Yb211) particles are dispersed in the YbBa2Cu3O7 (Yb123) matrix. The sample showed a sharp superconducting transition (Tc) with an onset value of 88.5 K. In spite of its low Tc in the RE123 families (RE=rare earth elements), the sample showed a large shielding current density of 5.5 × 108 A/m2 at 77 K and 0 T, which is comparable to those of melt-processed Y-Ba-Cu-O and OCMG-processed Nd-Ba-Cu-O. Analyses reveal that the dominant pinning center of melt-processed Yb-Ba-Cu-O bulk superconductors is Yb211 inclusions.",

keywords = "Irreversibility field, Melt-process, Nonsuperconducting inclusion, Pinning property, Yb-Ba-Cu-O",

author = "Tadashi Mochida and Naomichi Sakai and Yoo, {Sang Im} and Masato Murakami",

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AU - Mochida, Tadashi

AU - Sakai, Naomichi

AU - Yoo, Sang Im

AU - Murakami, Masato

PY - 2002/2/1

Y1 - 2002/2/1

N2 - We have studied the pinning characteristics of melt-processed Yb-Ba-Cu-O, in which Yb2BaCuO5 (Yb211) particles are dispersed in the YbBa2Cu3O7 (Yb123) matrix. The sample showed a sharp superconducting transition (Tc) with an onset value of 88.5 K. In spite of its low Tc in the RE123 families (RE=rare earth elements), the sample showed a large shielding current density of 5.5 × 108 A/m2 at 77 K and 0 T, which is comparable to those of melt-processed Y-Ba-Cu-O and OCMG-processed Nd-Ba-Cu-O. Analyses reveal that the dominant pinning center of melt-processed Yb-Ba-Cu-O bulk superconductors is Yb211 inclusions.

AB - We have studied the pinning characteristics of melt-processed Yb-Ba-Cu-O, in which Yb2BaCuO5 (Yb211) particles are dispersed in the YbBa2Cu3O7 (Yb123) matrix. The sample showed a sharp superconducting transition (Tc) with an onset value of 88.5 K. In spite of its low Tc in the RE123 families (RE=rare earth elements), the sample showed a large shielding current density of 5.5 × 108 A/m2 at 77 K and 0 T, which is comparable to those of melt-processed Y-Ba-Cu-O and OCMG-processed Nd-Ba-Cu-O. Analyses reveal that the dominant pinning center of melt-processed Yb-Ba-Cu-O bulk superconductors is Yb211 inclusions.

KW - Irreversibility field

KW - Melt-process

KW - Nonsuperconducting inclusion

KW - Pinning property

KW - Yb-Ba-Cu-O

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