Effect of BaO2 and fine Gd2BaCuO7-δ addition on the superconducting properties of air-processed GdBa 2Cu3O7-δ

Caixuan Xu; Anming Hu; Naomichi Sakai; Mitsuru Izumi; Izumi Hirabayashi

doi:10.1088/0953-2048/18/3/004

Effect of BaO₂ and fine Gd₂BaCuO_7-δ addition on the superconducting properties of air-processed GdBa ₂Cu₃O_7-δ

Caixuan Xu, Anming Hu, Naomichi Sakai, Mitsuru Izumi, Izumi Hirabayashi

Research output: Contribution to journal › Article

42 Citations (Scopus)

Abstract

Single-domain GdBa₂Cu₃O_7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC ₂ contents and Gd₂BaCuO_7-δ (Gd211) initial particle sizes. The experiments showed that BaO₂ addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as J_c and B_irr. An optimum addition amount is Gd123:BaO₂ = 1:0.1 molar. By employing fine Gd211, J_c at low magnetic fields is further enhanced. At B = 0 and 77 K, J_c reached 86 000 A cm^-2, which is a record high J_c value for melt-processed Gd123 bulk samples in air.

Original language	English
Pages (from-to)	229-233
Number of pages	5
Journal	Superconductor Science and Technology
Volume	18
Issue number	3
DOIs	https://doi.org/10.1088/0953-2048/18/3/004
Publication status	Published - 2005 Mar 1

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ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Cite this

Xu, C., Hu, A., Sakai, N., Izumi, M., & Hirabayashi, I. (2005). Effect of BaO₂ and fine Gd₂BaCuO_7-δ addition on the superconducting properties of air-processed GdBa ₂Cu₃O_7-δ. Superconductor Science and Technology, 18(3), 229-233. https://doi.org/10.1088/0953-2048/18/3/004

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abstract = "Single-domain GdBa2Cu3O7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC 2 contents and Gd2BaCuO7-δ (Gd211) initial particle sizes. The experiments showed that BaO2 addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as Jc and Birr. An optimum addition amount is Gd123:BaO2 = 1:0.1 molar. By employing fine Gd211, Jc at low magnetic fields is further enhanced. At B = 0 and 77 K, Jc reached 86 000 A cm-2, which is a record high Jc value for melt-processed Gd123 bulk samples in air.",

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AB - Single-domain GdBa2Cu3O7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC 2 contents and Gd2BaCuO7-δ (Gd211) initial particle sizes. The experiments showed that BaO2 addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as Jc and Birr. An optimum addition amount is Gd123:BaO2 = 1:0.1 molar. By employing fine Gd211, Jc at low magnetic fields is further enhanced. At B = 0 and 77 K, Jc reached 86 000 A cm-2, which is a record high Jc value for melt-processed Gd123 bulk samples in air.

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10.1088/0953-2048/18/3/004