Pattern induced phase transistion of vortex motion in high-Tc films

Wördenweber, R.; Schubert, J.; Hollmann, E.; Kutzner, R.; Kumar Ghosh, A.

doi:10.1063/1.3139077

Journal Article

Pattern induced phase transistion of vortex motion in high-Tc films

Wördenweber, R.FZJ* ; Hollmann, E.FZJ* ; Schubert, J.FZJ* ; Kutzner, R.FZJ* ; Kumar Ghosh, A.FZJ*

2009
American Institute of Physics Melville, NY

Applied physics letters 94, 202501 - 202503 (2009) [10.1063/1.3139077]

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Please use a persistent id in citations: http://hdl.handle.net/2128/17251 doi:10.1063/1.3139077

Abstract: A micropattern induced transition in the mechanism of vortex motion and vortex mobility is demonstrated for high-T-c films. The competition between the anomalous Hall effect and the guidance of vortices by rows of microholes (antidots) leads to a sudden change in the direction of vortex motion that is accompanied by a change of the critical current density and microwave losses. The latter demonstrates the difference in vortex mobility in the different phases of vortex motion in between and within the rows of antidots.

Keyword(s): J ; critical current density (superconductivity) (auto) ; flux flow (auto) ; Hall effect (auto) ; high-temperature superconductors (auto)

Classification:

Physics, Applied

Note: The authors would like to thank H.-W. Wingens, H. P. Bochem, M. Nonn, N. Klein, and A. Offenh user for their valuable support. This work was supported by the ESF program "Nanoscience and Engineering in Superconductivity-NES."

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