Abstract
RE-Ba-Cu-O bulk samples and single crystals were exposed to fast-neutron and heavy-ion irradiation (HII). The fast-neutron irradiation introduces spherical cascade defects, whereas the HII creates the columnar defects that extend the entire sample. Dc magnetization measurements and magnetic relaxation experiments were performed with a SQUID magnetometer to study the effect of radiation-induced defects on flux pinning properties. In both cases, we observed an enhancement of critical current and a decrease of magnetic relaxation. However, there was a large difference in the observed Jc-B and Fp-B relations, which can be explained in terms of the difference in the defect structure and density.
| Original language | English |
|---|---|
| Pages (from-to) | 663-665 |
| Number of pages | 3 |
| Journal | Superconductor Science and Technology |
| Volume | 14 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2001 Sep 1 |
ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry
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Cite this
Chikumoto, N., Konczykowski, M., Terai, T., & Murakami, M. (2001). Modification of flux pinning properties of RE-Ba-Cu-O superconductor by fast-neutron and heavy-ion irradiation. Superconductor Science and Technology, 14(9), 663-665. https://doi.org/10.1088/0953-2048/14/9/305