A comparative study of enhanced flux pinning among melt-processed SmBa2Cu3O7-δ, (Sm0.5Eu0.5)Ba2Cu3 O7-δ, EuBa2Cu3O7-δ superconductors

A. Hu, N. Sakai, N. Chikumoto, M. Murakami, P. Verges, G. Fuchs, G. Krabbes

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Large grain bulk superconductors with various compositions: SmBa2Cu3O7-δ, (Sm0.5Eu0.5)Ba2Cu3 O7-δ, and EuBa2Cu3O7-δ have been successfully fabricated in air. The scaling studies of the volume pinning force evidenced two competitive pinning contributions at low and high fields for all compositions. The analyses of the scaling curves showed that the low field pinning kept identical for three compositions, while in high fields, the dominant pinning for Sm123 and Eu123 was the small-sized normal core pinning and the δTc pinning in SE123.

Original languageEnglish
Pages (from-to)461-465
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume357-360
DOIs
Publication statusPublished - 2001 Aug

Keywords

  • Melt processing
  • Pinning mechanism
  • Scaling law

ASJC Scopus subject areas

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

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