Vortex-antivortex dynamics and field-polarity-dependent flux creep in hybrid superconductor/ferromagnet nanostructures

[en] Vortex-antivortex arrays (VAA) that are created in a type-II superconducting film by lattices of ferromagnetic dots with perpendicular anisotropy have been investigated. The highest critical current is shifted to a nonzero value of the applied field, and current-voltage characteristics show different regimes of vortex motion even in zero-applied field due to the presence of the VAA. Creep of interstitial vortices is observed at low driving forces. This flux creep is strongly field-polarity dependent.

Disciplines :

Physics

Author, co-author :

Lange, M.

Van Bael, M. J.

Silhanek, Alejandro ; Katholieke Universiteit Leuven - KUL

Moshchalkov, V. V.

Language :

English

Title :

Vortex-antivortex dynamics and field-polarity-dependent flux creep in hybrid superconductor/ferromagnet nanostructures

Publication date :

2005

Journal title :

Physical Review. B, Condensed Matter

ISSN :

0163-1829

eISSN :

1095-3795

Publisher :

American Institute of Physics, New York, United States - New York

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 11 November 2011

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