Influence of initial composition on the flux pinning of melt-processed (SmxEu1-x)Ba2Cu3O7-δ

A. Hu, Naomichi Sakai, D. X. Huang, N. Chikumoto, Masato Murakami

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Superconducting properties of melt-processed (SmxEu1-x)Ba2Cu3O7-δ were investigated by varying the Sm/Eu ratio in the initial composition while maintaining the mixture of RE123 and RE2BaO4 in a molar ratio of 1:0.15 along the REBa2Cu3O7-δ-RE2BaO4 line (RE = Sm and Eu). A suppression of the height of peak effect and the shift of the peak position to higher fields concurred with increasing Eu concentration. Such a systematical variation was ascribed to a narrowing compositional fluctuation. Experiments also unveiled a dramatic enhancement of the irreversibility line for the sample with the higher peak field, which supported the fact that chemical modulation was a dominant pinning in high fields.

Original languageEnglish
Pages (from-to)692-696
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

Fingerprint

Flux pinning
flux pinning
Modulation
Chemical analysis
Experiments
retarding
modulation
augmentation
shift

Keywords

  • Compositional fluctuation
  • Irreversibility line
  • Peak effect

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Influence of initial composition on the flux pinning of melt-processed (SmxEu1-x)Ba2Cu3O7-δ . / Hu, A.; Sakai, Naomichi; Huang, D. X.; Chikumoto, N.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 692-696.

Research output: Contribution to journalArticle

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