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Title: Local observation of field polarity dependent flux pinning by magnetic dipoles
Authors: Van Bael, Margriet
Bekaert, Joost
Temst, Kristiaan
Van Look, Lieve
Moshchalkov, Victor
Bruynseraede, Yvan
Howells, GD
Grigorenko, AN
Bending, SJ
Borghs, Gustaaf #
Issue Date: Jan-2001
Publisher: American physical soc
Series Title: Physical Review Letters vol:86 issue:1 pages:155-158
Abstract: A scanning Hall probe microscope is used to study flux pinning in a thin superconducting Pb film covering a square array of single-domain Co dots with in-plane magnetization. We show that single flux quanta of opposite sign thread the superconducting film below T-c at the opposite poles of these dipoles. Depending on the polarity of the applied field, flux lines are attracted to a specific pole of the dipoles, due to the direct interaction with the vortexlike structures induced by the local stray field.
URI: 
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Physics and Astronomy - miscellaneous
Nuclear and Radiation Physics Section
# (joint) last author

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