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 |
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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 |
Externally published | Yes |
ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry