Abstract
Single-domain GdBa2Cu3O7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC 2 contents and Gd2BaCuO7-δ (Gd211) initial particle sizes. The experiments showed that BaO2 addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as Jc and Birr. An optimum addition amount is Gd123:BaO2 = 1:0.1 molar. By employing fine Gd211, Jc at low magnetic fields is further enhanced. At B = 0 and 77 K, Jc reached 86 000 A cm-2, which is a record high Jc value for melt-processed Gd123 bulk samples in air.
| Original language | English |
|---|---|
| Pages (from-to) | 229-233 |
| Number of pages | 5 |
| Journal | Superconductor Science and Technology |
| Volume | 18 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2005 Mar 1 |
ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry
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Xu, C., Hu, A., Sakai, N., Izumi, M., & Hirabayashi, I. (2005). Effect of BaO2 and fine Gd2BaCuO7-δ addition on the superconducting properties of air-processed GdBa 2Cu3O7-δ. Superconductor Science and Technology, 18(3), 229-233. https://doi.org/10.1088/0953-2048/18/3/004