Pinning mechanism of the high critical current density Sm-Ba-Cu-O superconductors with Sm210/Pd/Pt/CeO2 addition

Shih Yun Chen, In Gann Chen, Mow Kuen Wu

研究成果: Conference article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The superconducting properties and the pinning mechanisms of air-processed melt-textured grown Sm-Ba-Cu-O samples with the addition of small amounts of Pd (0.5wt%), Pt (0.5wt%) and CeO2 (1.0wt%) were studied. The superconducting properties were enhanced by these additions, especially in co-doped samples. With co-doping of Pd/Pt or Pd/CeO2, the samples exhibited a high Tc (∼91 K) and a high Jc (0 T, 77 K) ∼ 104 A/cm2. Pinning forces vs magnetic field studies indicated that these samples have different pinning mechanisms from the un-doped sample. Observations of the microstructures showed that the Pt or CeO2 addition reduced the sizes of the 211-particles significantly. EPMA results showed that the chemical distributions of these additions are different. Furthermore, TEM/EDS investigations found that the compositional fluctuation of the matrix in the sample co-doped with Pd/Pt is larger than in the sample co-doped with Pd/CeO2.

原文English
頁(從 - 到)3087-3090
頁數4
期刊IEEE Transactions on Applied Superconductivity
13
發行號2
DOIs
出版狀態Published - 2003 7月 1
事件2002 Applied Superconductivity Conference - Houston, TX, United States
持續時間: 2002 8月 42002 8月 9

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

指紋

深入研究「Pinning mechanism of the high critical current density Sm-Ba-Cu-O superconductors with Sm210/Pd/Pt/CeO2 addition」主題。共同形成了獨特的指紋。

引用此