Transition from turbulent to nearly laminar vortex flow in superconductors with periodic pinning
J. Gutierrez, A. V. Silhanek, J. Van de Vondel, W. Gillijns, V. V. Moshchalkov
DOI 10.1103/PhysRevB.80.140514 · Physical Review B
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Abstract
We revisit the vortex dynamics in Al thin films containing an artificial periodic array of antidots by means of electrical transport measurements. We clearly identify a turbulent to laminarlike vortex flow transition which manifests itself as a negative differential resistivity. This transition is accompanied by a strong irreversibility in the voltage-current characteristics. The dynamical phase diagrams obtained as a function of commensurability, temperature, and driving force are in good agreement with the early predictions by Reichhardt et al. [Phys. Rev. Lett. 78, 2648 (1997)] based on molecular dynamic simulations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.313 | Pressure not reported | midpoint |
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