Résumé
Magnetic relaxation in the Bragg-glass phase of overdoped Bi2Sr2CaCu2O8 crystals was investigated using time-resolved magneto-optical visualisation of the flux distribution. This has permitted us to extract the current-voltage characteristic, which can be well described by a power-law, although fits to a stretched exponential E ∼ exp(- jc/j)μ with 0.3 < μ < 0.8 are passible at long times in excess of 100 g.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 1279-1280 |
| Nombre de pages | 2 |
| journal | Physica C: Superconductivity and its Applications |
| Volume | 341-348 |
| Numéro de publication | PART 3 |
| Les DOIs | |
| état | Publié - 1 janv. 2000 |
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