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Nanoengineered Magnetic-Field-Induced Superconductivity

Martin Lange, Margriet J. Van Bael, Yvan Bruynseraede, and Victor V. Moshchalkov
Phys. Rev. Lett. 90, 197006 – Published 15 May 2003
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Abstract

The perpendicular critical fields of a superconducting film have been strongly enhanced by using a nanoengineered lattice of magnetic dots (dipoles) on top of the film. Magnetic-field-induced superconductivity is observed in these hybrid superconductor/ferromagnet systems due to the compensation of the applied field between the dots by the stray field of the dipole array. By switching between different magnetic states of the nanoengineered field compensator, the critical parameters of the superconductor can be effectively controlled.

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  • Received 4 September 2002

DOI:https://doi.org/10.1103/PhysRevLett.90.197006

©2003 American Physical Society

Authors & Affiliations

Martin Lange*, Margriet J. Van Bael, Yvan Bruynseraede, and Victor V. Moshchalkov

  • Laboratorium voor Vaste-Stoffysica en Magnetisme, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium

  • *Electronic address: martin.lange@fys.kuleuven.ac.be

See Also

Souped-up Superconductivity

Adrian Cho
Phys. Rev. Focus 11, 21 (2003)

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Issue

Vol. 90, Iss. 19 — 16 May 2003

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