Flux pinning by Gd-211 particles in ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy melt-processed superconductors

M. Muralidhar, S. Nariki, M. Jirsa, M. Murakami

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Sub-micron Gd2BaCuO5 (Gd-211) particles were embedded in the ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy (NSG-123) melt-textured superconductors. To enhance critical current density at low fields, different amounts of the secondary phase were added and refined by addition of 0.5 mol% Pt and 1 mol% CeO2. Optical and scanning electron microscopy indicated sub-micron, mostly Gd-211, particles in the final product. Critical currents in remanent state increased monotonously with 211 concentration but the secondary peak did not nearly change. Critical current density of 100 kAcm-2 at 77 K and the applied field of 2 T was achieved in the NSG-123 sample with 10 mol% Gd-211.

Original languageEnglish
Pages (from-to)746-749
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1

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Keywords

  • (NdSmGd)BaCuO
  • Flux pinning
  • Melt processing
  • Microstructure

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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