Effect of ZrO2 and ZnO nanoparticles inclusions on superconductive properties of the melt-processed GdBa2Cu3O7-δ bulk superconductor

Y. Xu, A. Hu, C. Xu, N. Sakai, I. Hirabayashi, M. Izumi

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Single domain Gd123 bulk superconductors have been fabricated successfully with doping both ZrO2 and ZnO nanoparticles by a hot seeded melt growth in air. Superconductive properties were studied on the specimens selected from different positions of the domain separately, along the a-b plane and c-axis. The nanosized defects induced by the nanoparticles can be effective pinning center to enhance the Jc of the bulk. Atomic substitution of Cu site with Zn ion enables us to enhance the Jc but the substitution suppresses the Tc of the bulk. By the analysis of the pinning force, for the specimens cut along the a-b plane, the δl pinning is enhanced by the addition of nanoparticles. While for the specimens cut along the c-axis, the δTc pinning is remarkably enhanced.

Original languageEnglish
Pages (from-to)1363-1365
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - 2008 Sep 15

Keywords

  • Flux pinning
  • Melt processing Gd123
  • Nanoparticles
  • ZrO and ZnO

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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