Abstract
We have studied magnetic properties of a single grain Gd-Ba-Cu-O bulk superconductor 140 mm in diameter. The distribution of the trapped magnetic field showed that the sample was a single domain without serious weak links. The maximum trapped magnetic field at 65 K was 3.66 T, when the bulk was field-cooled in 4 T. From the distribution measurements of the trapped magnetic field, it was confirmed that a large amount of flux could be trapped in a large grain superconductor. In addition, the magnetic field could reach a longer distance in a large bulk compared to smaller samples. The repulsive force measurements also showed that the repulsive force density of the larger bulk was much larger than those of smaller samples.
| Original language | English |
|---|---|
| Pages (from-to) | 305-309 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 460-462 I |
| Issue number | SPEC. ISS. |
| DOIs | |
| Publication status | Published - 2007 Sept 1 |
Keywords
- Large bulk
- RE123
- Repulsive force
- Superconductor
- Trapped field
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering