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Title: Magnetic domains and flux pinning properties of a nanostructured ferromagnet/superconductor bilayer
Authors: Van Bael, Margriet ×
Raedts, Sophie
Temst, Kristiaan
Swerts, Johan
Moshchalkov, Victor
Bruynseraede, Yvan #
Issue Date: Oct-2002
Publisher: Amer inst physics
Series Title: Journal of Applied Physics vol:92 issue:8 pages:4531-4537
Abstract: We have investigated the magnetic and superconducting properties of a nanostructured ferromagnet/superconductor hybrid system, consisting of a Co layer with a square array of rectangular holes (antidots), covered with a thin continuous (nonperforated) superconducting Pb layer. The Co film with an antidot lattice shows a strong in-plane magnetic shape anisotropy determined by the array configuration and the rectangular shape of the antidots. Remanent domain structures in the uncovered Co antidot array are imaged at room temperature by magnetic force microscopy. The superconducting pinning properties of the hybrid ferromagnet/superconductor system are studied for different magnetic states of the Co antidot lattice. We demonstrate that the contribution to the superconducting pinning potential caused by the stray field from the domain walls is stronger than that arising from the periodic modulation due to the underlying antidot lattice. (C) 2002 American Institute of Physics.
URI: 
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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