Studies of flux pinning behaviour in melt-processed ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors

A. K. Pradhan, Muralidhar Miryala, Masato Murakami, N. Koshizuka

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The flux pinning behaviour of ternary melt-processed (Nd-Eu-Gd)Ba2Cu3Oy superconductors is studied with various second-phase defect concentrations using magnetotransport and magnetization measurements. A pronounced field-induced bump feature in the resistivity was observed. The dissipation was found to be thermal activation type. The current-voltage (I-V) characteristics over the whole transition temperature regime show a linear flux-flow type behaviour at high fields that favours an increase in viscosity in the liquid phase. However, I-V curves show a change of curvature at low field. The Nd/Ba substitution sites along with second-phase particles refined by the addition of a small amount of Pt are basically responsible for high flux pinning.

Original languageEnglish
Pages (from-to)761-765
Number of pages5
JournalSuperconductor Science and Technology
Volume13
Issue number6
DOIs
Publication statusPublished - 2000 Jun
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this