Article (Scientific journals)
Superconducting microrings as magnetic pinning centers
Gillijns, W.; Silhanek, Alejandro; Moshchalkov, V. V.
2007In Applied Physics Letters, 91 (20)
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Keywords :
superconductivity
Abstract :
[en] The nucleation of the superconducting condensate in an Al film deposited on top of a periodic array of microsized Pb rings is investigated using transport measurements. We demonstrate that these Pb rings form tunable pinning sites which can be switched at will to repel or attract vortices in the Al film, depending on their magnetic history. After zero field cooling, a repulsive interaction between the rings and the vortices is observed, while after field cooling, the interaction becomes attractive. The flexibility of such current-induced pinning centers can lead to an enhanced control over the vortex motion. (c) 2007 American Institute of Physics.
Disciplines :
Physics
Author, co-author :
Gillijns, W.
Silhanek, Alejandro  ;  Katholieke Universiteit Leuven - KUL
Moshchalkov, V. V.
Language :
English
Title :
Superconducting microrings as magnetic pinning centers
Publication date :
2007
Journal title :
Applied Physics Letters
ISSN :
0003-6951
eISSN :
1077-3118
Publisher :
American Institute of Physics, Melville, United States - New York
Volume :
91
Issue :
20
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 November 2011

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