Effect of Eu2BaCuO5 addition on the matrix composition and flux pinning in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy superconductors

M. Muralidhar, M. Murakami

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We have investigated the microstructure and flux-pinning properties of the (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) bulk superconductors with the addition of different amounts of Eu2BaCuO5 (Eu-211) secondary phase particles using SEM, EPMA and magnetic measurements. The SEM study showed that the submicrometre secondary-phase particles were finely distributed in the NEG-123 matrix. Chemical analyses revealed that the matrix composition changed with the quantity of Eu-211 particles. The scaling study of the volume pinning forces showed that the peak position lies around h≈0.52, which indicates enhanced ΔTc-type pinning. For the NEG-123 sample with 20 mol% Eu-211 additions, a large critical current density (Jc) of 50 000 A cm-2 was achieved at 77 K and 2.7 T for the H∥c axis.

本文言語English
ページ(範囲)1587-1594
ページ数8
ジャーナルSuperconductor Science and Technology
13
12
DOI
出版ステータスPublished - 2000 12月 1
外部発表はい

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

「Effect of Eu2BaCuO5 addition on the matrix composition and flux pinning in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy 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