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

A. K. Pradhan, M. Muralidhar, M. Murakami, N. Koshizuka

研究成果: Conference article査読

6 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)761-765
ページ数5
ジャーナルSuperconductor Science and Technology
13
6
DOI
出版ステータスPublished - 2000 6 1
外部発表はい
イベントThe 2nd International Workshop on the Processing and Applications of Superconducting (RE)CBO Large Grain Materials - Morioka, Jpn
継続期間: 1999 10 191999 10 22

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

フィンガープリント

「Studies of flux pinning behaviour in melt-processed ternary (Nd-Eu-Gd)Ba<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> superconductors」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル