| DC Field | Value | Language |
|---|
| dc.contributor.author | Prischepa, S. L. | - |
| dc.contributor.author | Salvatoand, M. | - |
| dc.contributor.author | Maritato, L. | - |
| dc.date.accessioned | 2016-11-18T10:30:10Z | - |
| dc.date.accessioned | 2017-07-27T12:21:01Z | - |
| dc.date.available | 2016-11-18T10:30:10Z | - |
| dc.date.available | 2017-07-27T12:21:01Z | - |
| dc.date.issued | 2004 | - |
| dc.identifier.citation | Prischepa, S. L. Current-dependent crossover in the flux dynamics of MgB2 thin films / S. L. Prischepa, M. Salvatoand, L. Maritato // Europhysics Letters. – 2004. – Volume 65, Number 4. – Р. 540–545. | ru_RU |
| dc.identifier.uri | https://libeldoc.bsuir.by/handle/123456789/10129 | - |
| dc.description.abstract | We have investigated the dissipative behaviour of MgB2 textured thin films at different perpendicular magnetic fields H and bias currents J, to study activation energy dependencies U(J) and U(H). For J < J*, where J* is a magnetic-field–dependent crossover current, activation energies are weakly current dependent, U(J) ≈ const, while, for J > J*, U(J) ∼ – ln J. At J < J*, the magnetic-energy dependencies are logarithmic, U(H) ∼ – ln H, while for J > J*, U(H) ∼ H–1, up to μ0H ≈ 5 T. The J*(H) curve separates two zones with different vortex dynamics. We discuss the J*(H) curve in terms of a current-driven transition from a thermally activated flux flow to a flux creep regime. For pronounced disorder, the data suggest the influence of the activation energy distribution on the U(J) and U(H) dependencies. | ru_RU |
| dc.language.iso | en | ru_RU |
| dc.publisher | Europhysics Letters | ru_RU |
| dc.subject | публикации ученых | ru_RU |
| dc.title | Current-dependent crossover in the flux dynamics of MgB2 thin films | ru_RU |
| dc.type | Article | ru_RU |
| dc.identifier.DOI | 10.1209/epl/i2003-10123-2 | - |
| Appears in Collections: | Публикации в зарубежных изданиях
|
