Title: Enhanced pinning and proliferation of matching effects in a superconducting film with a Penrose array of magnetic dots
Authors: Silhanek, Alejandro ×
Gillijns, Werner
Moshchalkov, V. V
Zhu, B. Y
Moonens, J
Leunissen, L. H. A #
Issue Date: Oct-2006
Publisher: American Institute of Physics
Series Title: Applied Physics Letters vol:89 issue:15 pages:1-3
Article number: 152507
Abstract: The vortex dynamics in superconducting films deposited on top of a fivefold Penrose array of magnetic dots is studied by means of transport measurements. The authors show that in the low pinning regime (demagnetized dots) a few periodic and aperiodic matching features coexist. In the strong pinning regime (magnetized dots) a richer structure of unforeseen periodic and aperiodic vortex patterns appear, giving rise to a clear enhancement of the critical current in a broader field range. Possible stable vortex configurations are determined by molecular dynamics simulations. (c) 2006 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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