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

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-ax...

Full description

Saved in:
Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2008-09, Vol.468 (15-20), p.1363-1365
Main Authors: XU, Y, HU, A, XU, C, SAKAI, N, HIRABAYASHI, I, IZUMI, M
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Critical currents
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
Vortex lattices ,flux pinning, flux creep
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 deltal pinning is enhanced by the addition of nanoparticles. While for the specimens cut along the c-axis, the deltaTc pinning is remarkably enhanced.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2008.05.056