抄録
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.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 305-309 |
| ページ数 | 5 |
| ジャーナル | Physica C: Superconductivity and its applications |
| 巻 | 460-462 I |
| 号 | SPEC. ISS. |
| DOI | |
| 出版ステータス | Published - 2007 9月 1 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 凝縮系物理学
- エネルギー工学および電力技術
- 電子工学および電気工学