Dipole-induced vortex ratchets in superconducting films with arrays of micromagnets

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dc.creatorSilva, C. C. de Souza
dc.creatorSilhanek, A. V.
dc.creatorVan de Vondel, J.
dc.creatorGillijns, W.
dc.creatorMetlushko, V.
dc.creatorIlic, B.
dc.creatorMoshchalkov, V. V.
dc.date2007-01-18
dc.date.accessioned2026-07-07T08:02:42Z
dc.date.available2026-07-07T08:02:42Z
dc.descriptionWe investigate the transport properties of superconducting films with periodic arrays of in-plane magnetized micromagnets. Two different magnetic textures are studied: a square array of magnetic bars and a close-packed array of triangular microrings. As confirmed by MFM imaging, the magnetic state of both systems can be adjusted to produce arrays of almost point-like magnetic dipoles. By carrying out transport measurements with ac drive, we observed experimentally a recently predicted ratchet effect induced by the interaction between superconducting vortices and the magnetic dipoles. Moreover, we find that these magnetic textures produce vortex-antivortex patterns, which have a crucial role on the transport properties of this hybrid system.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0701445
dc.identifierhttp://arxiv.org/abs/cond-mat/0701445
dc.identifierPhys. Rev. Lett. 98, 117005 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.117005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129310
dc.subjectSuperconductivity
dc.titleDipole-induced vortex ratchets in superconducting films with arrays of micromagnets
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