Enhancement of the superconducting properties of air-processed melt-growth Sm-Ba-Cu-O with the addition of Sm2BaO4

In Gann Chen, Fu Cheng Chang, Maw Kuen Wu

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

In this paper we reveal a systematic study of a series of samples with various Sm2BaO4 additions to compare the effect of the initial composition on the superconductivity. It is found that with the addition of 40 mol% Sm2BaO4 (Sm210) a significant improvement of superconductivity (Tc ∼ 89 K, Jc(77 K, 1 T) ∼ 104 A cm-2) can be achieved with melted-textured growth under ambient conditions. Both the Sm2BaCuO5 (Sm211) particle size and the Sm/Ba ratio in the SmBa2Cu3O7 (Sm123) matrix are reduced. We discuss in detail the microstructural evolution, the Sm/Ba substitution ratio and the superconducting properties.

Original languageEnglish
Pages (from-to)717-721
Number of pages5
JournalSuperconductor Science and Technology
Volume15
Issue number5
DOIs
Publication statusPublished - 2002 May 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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