Origin of ordering oscillation of local composition in melt-processed REBa2Cu3O7-δ superconductors (re: Sm, Eu, Gd)

A. Hu, N. Sakai, I. Hirabayashi, M. Winter, M. R. Koblischka, H. Zhou

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

High quality melt-processed (Sm0.33Eu0.33Gd 0.33)Ba2Cu3O7-δ superconductors were grown and microstructural origin of their distinguished superconducting performance was investigated by atomic force microscopy (AFM), transmission electron microscopy (TEM) and the field dependent superconducting transition performed with SQUID. A nanoscopic periodic array of chemical composition was unveiled. This novel structure acted as δTc -style pinning centers.

Original languageEnglish
Pages (from-to)159-161
Number of pages3
JournalInternational Journal of Modern Physics B
Volume19
Issue number1-3
DOIs
Publication statusPublished - 2005 Jan 3

Keywords

  • Compositional fluctuation
  • Melt processing
  • δT-style pinning

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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