Abstract
We have fabricated c-axis oriented Nd-Ba-Cu-O superconductors with the top-seeded melt-growth technique in air. The highest Jc reached 50,000 A/cm2 at 77 K and 0.9 T. The local superconducting properties strongly depended on the distance from a seed crystal. The onset Tc as well as the transition width was improved as the distance from a seed increased. The chemical analyses revealed that the substitution levels of Nd on the Ba site gradually decreased with increasing the distance from a seed.
Original language | English |
---|---|
Pages (from-to) | 1152-1154 |
Number of pages | 3 |
Journal | Physica C: Superconductivity and its applications |
Volume | 372-376 |
Issue number | PART 2 |
DOIs | |
Publication status | Published - 2002 Aug |
Externally published | Yes |
Keywords
- Melt process
- Nd-Ba-Cu-O
- Substitution
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering