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

A. Hu, N. Sakai, D. X. Huang, N. Chikumoto, M. Murakami

Research output: Contribution to journalArticlepeer-review


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
Issue numberPART 1
Publication statusPublished - 2002 Oct 1
Externally publishedYes


  • Compositional fluctuation
  • Irreversibility line
  • Peak effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Influence of initial composition on the flux pinning of melt-processed (SmxEu1-x)Ba2Cu3O7-δ '. Together they form a unique fingerprint.

Cite this