Abstract
The fundamentals of the electromagnetic modelling of high-temperature superconductors are discussed. Special attention is paid to intrinsic features of high-temperature superconductors different to those of low-temperature superconductors. Examples of those features are strong thermal fluctuations, which results in enhanced flux creep and slanted E(J)-characteristics, anisotropy of critical current density and material resistivity, and the granularity of the material. Having established the fundamental principles for the loss modelling, the influence of thermal fluctuations, anisotropy and granularity on the AC losses are considered.
| Original language | English |
|---|---|
| Pages (from-to) | 57-61 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 310 |
| Issue number | 1-4 |
| DOIs | |
| Publication status | Published - Dec 1998 |
| MoE publication type | A1 Journal article-refereed |
Funding
We acknowledge L. Kettunen and J. Lehtonen for useful discussions and comments. The work was supported by the Finnish Academy.
Keywords
- E-J characteristic
- Magnetic AC loss
- Magnetization
- Transport AC loss