Nanoengineered magnetic-field-induced superconductivity |
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Authors: | Lange Martin Van Bael Margriet J Bruynseraede Yvan Moshchalkov Victor V |
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Institution: | Laboratorium voor Vaste-Stoffysica en Magnetisme, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium. martin.lange@fys.kuleuven.ac.be |
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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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