High magnetic field matching effects in NbN films induced by template grown dense ferromagnetic nanowires arrays
(2009) Applied Physics Letters — Vol. 95, n° 25 (2009)
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- Abstract
- Dense arrays of ordered ferromagnetic nanowires have been used to create periodic magnetic pinning centers in thin superconducting NbN films. The nanowires were electrodeposited in a highly ordered porous alumina membrane and the thin NbN film was deposited on top of the perpendicularly oriented magnetic nanowires. Matching effects have been observed up to 2.5 T (11th matching field) and are maintained at low temperature. An appreciable enhancement of the superconducting properties is observed. At low fields, a hysteretic behavior in the magnetoresistance is found, directly related to the magnetization processes of arrays of interacting single domain ferromagnetic nanowires. (C) 2009 American Institute of Physics. [doi:10.1063/1.3276557]
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Hallet, X., Mátéfi-Tempfli, M.-R., Michotte, S., Piraux, L., Vanacken, J., Moshchalkov, V. V., & Mátéfi-Tempfli, S. (2009). High magnetic field matching effects in NbN films induced by template grown dense ferromagnetic nanowires arrays. Applied Physics Letters, 95(25). https://doi.org/10.1063/1.3276557 (Original work published 2009)