Effect of Gd2Ba4CuMoOy addition on the band structure and spatial variation of superconducting properties in GdBa 2Cu3O7-δ single domains

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

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Gd2Ba4CuMoOy (Gd2411) single phase was synthesized in air and added into GdBa2Cu3O 7-δ (Gd123) bulk superconductors with the addition amount ranging from 0.2% to 20%, in molar ratio to Gd123. Both microstructure and superconducting properties of each bulk were investigated from the seed position to the boundary of a single domain. Although a band structure with the alternative distribution of Gd2BaCuO5 (Gd211) and Gd2411 appeared in all samples, the range of this inhomogeneity only appeared within 5 mm from each side of the seed. The critical current density (Jc) shows that Gd2411 plays an important role in the control of the local superconducting properties. The highest Jc reached 84 500 A cm -2 at 77 K under the self-field in the sample with 0.4% addition of Gd2411.

Original languageEnglish
Pages (from-to)1082-1088
Number of pages7
JournalSuperconductor Science and Technology
Volume18
Issue number8
DOIs
Publication statusPublished - 2005 Aug 1
Externally publishedYes

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Band structure
Seed
seeds
Superconducting materials
critical current
inhomogeneity
current density
microstructure
Microstructure
air
Air

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Effect of Gd2Ba4CuMoOy addition on the band structure and spatial variation of superconducting properties in GdBa 2Cu3O7-δ single domains. / Xu, Caixuan; Hu, Anming; Sakai, Naomichi; Izumi, Mitsuru; Hirabayashi, Izumi.

In: Superconductor Science and Technology, Vol. 18, No. 8, 01.08.2005, p. 1082-1088.

Research output: Contribution to journalArticle

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abstract = "Gd2Ba4CuMoOy (Gd2411) single phase was synthesized in air and added into GdBa2Cu3O 7-δ (Gd123) bulk superconductors with the addition amount ranging from 0.2{\%} to 20{\%}, in molar ratio to Gd123. Both microstructure and superconducting properties of each bulk were investigated from the seed position to the boundary of a single domain. Although a band structure with the alternative distribution of Gd2BaCuO5 (Gd211) and Gd2411 appeared in all samples, the range of this inhomogeneity only appeared within 5 mm from each side of the seed. The critical current density (Jc) shows that Gd2411 plays an important role in the control of the local superconducting properties. The highest Jc reached 84 500 A cm -2 at 77 K under the self-field in the sample with 0.4{\%} addition of Gd2411.",
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AB - Gd2Ba4CuMoOy (Gd2411) single phase was synthesized in air and added into GdBa2Cu3O 7-δ (Gd123) bulk superconductors with the addition amount ranging from 0.2% to 20%, in molar ratio to Gd123. Both microstructure and superconducting properties of each bulk were investigated from the seed position to the boundary of a single domain. Although a band structure with the alternative distribution of Gd2BaCuO5 (Gd211) and Gd2411 appeared in all samples, the range of this inhomogeneity only appeared within 5 mm from each side of the seed. The critical current density (Jc) shows that Gd2411 plays an important role in the control of the local superconducting properties. The highest Jc reached 84 500 A cm -2 at 77 K under the self-field in the sample with 0.4% addition of Gd2411.

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