Magnetic properties of the melt-textured (Nd,Eu,Gd)Ba2Cu3Oy superconductors doped by nanoparticles of refractory metals

M. Jirsa, Muralidhar Miryala, M. Rameš

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Magnetic data measured on (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy with 35 mol% of Gd-211 (70 nm size), 1 wt% Ag, and 0.1 mol% of TiO2, Nb2O5, and MoO3 (all 10 nm grain size) were analyzed. These composites exhibited very high critical current density, qualifying them to be the best candidates for use as bulk superconducting magnets. The data were analyzed on the basis of the phenomenological model of two additive contributions from "large" particles and pointlike defects. The model enables a quantitative evaluation of both pinning categories as to their pinning efficiency under various conditions. The pinning force was analyzed in terms of both this model and the Kramer's scheme.

Original languageEnglish
Title of host publicationPhysics Procedia
PublisherElsevier
Pages453-457
Number of pages5
Volume36
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventSuperconductivity Centennial Conference, SCC 2011 - The Hague, Netherlands
Duration: 2011 Sep 182011 Sep 23

Other

OtherSuperconductivity Centennial Conference, SCC 2011
CountryNetherlands
CityThe Hague
Period11/9/1811/9/23

Keywords

  • Bulk cuprates
  • Nanoparticle doping
  • Neg-123
  • Refractory metal oxide doping
  • Vortex pinning

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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