Abstract
A simple model is proposed to analyze the relationship between susceptibility and composition in superconducting composites. The model is based on a random distribution of superconducting and nonsuperconducting phases and on the occurrence of shielding when a nonsuperconducting area is encapsulated by superconducting material. A three-dimensional simulation based on percolation theory is in agreement with our experimental data on a series of MgO-superconductor composites. A predicted percolation effect was observed and a maximum in shielding efficiency was determined.
| Original language | English |
|---|---|
| Pages (from-to) | 9176-9180 |
| Number of pages | 5 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 61 |
| Issue number | 13 |
| DOIs | |
| State | Published - 2000 |
| Externally published | Yes |
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