Vortex-Antivortex Annihilation and Flux Turbulence in Layered Type-II Superconductors
| Autor: | N. Logoboy, Boris Ya. Shapiro, Baruch Rosenstein, I. Shapiro, E. E. Dvash |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Physics
Superconductivity Annihilation Condensed matter physics Turbulence Front (oceanography) Condensed Matter Physics Instability Atomic and Molecular Physics and Optics Vortex Condensed Matter::Superconductivity General Materials Science Anisotropy Nonlinear Sciences::Pattern Formation and Solitons Type-II superconductor |
| Zdroj: | Journal of Low Temperature Physics. 167:39-58 |
| ISSN: | 1573-7357 0022-2291 |
| DOI: | 10.1007/s10909-012-0475-0 |
| Popis: | New mechanism of turbulence instability of standing flux-antiflux front in layered superconductors is presented. We describe two assisting mechanisms destabilizing the standing vortex-antivortex front. There are anisotropy of the layered superconductors and the heat, released by the vortex-antivortex annihilation. We present the conditions of the front stability for various anisotropy and heating parameters. We predict that heat released by the vortex-antivortex annihilations enhances the turbulence instability in superconductors with small anisotropy. The characteristic size of the unstable pattern is estimated. The results are in a good agreement with recent experiments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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