Crossed-ratchet effects and domain wall geometrical pinning

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Mostrar el registro sencillo del ítem Marconi, V.I. Kolton, A.B. Capitán, José A. Cuesta, José A. Pérez-Junquera, A. Vélez, M. Martín, J.I. Parrondo, J.M.R. 2014-06-06T11:29:21Z 2014-06-06T11:29:21Z 2011-06-03
dc.identifier.bibliographicCitation Phys. Rev. B (2011), vol. 83, n.21 (214403), pp. 1-13
dc.identifier.issn 1098-0121
dc.description.abstract The motion of a domain wall in a two-dimensional medium is studied by taking into account the internal elastic degrees of freedom of the wall and geometrical pinning produced by both holes and sample boundaries. This study is used to analyze the geometrical conditions needed for optimizing crossed-ratchet effects in periodic rectangular arrays of asymmetric holes, recently observed experimentally in patterned ferromagnetic films. Exact calculation as a function of the geometry of the sample and numerical simulations have been used to obtain the anisotropic critical fields for depinning flat and kinked walls in rectangular arrays of triangles. The aim is to show with a generic elastic model for interfaces how to build a rectifier able to display crossed-ratchet effects or effective potential landscapes for controlling the motion of interfaces or invasion fronts.
dc.description.sponsorship This work is supported by SeCyT-UNCórdoba and CONICET, Argentina, Spanish MICINN (FIS2008-06249 and HP2008-0032) and Asturias FICYT (IB08-106), and Grants MOSAICO (Spain) and MODELICO-CM (Comunidad de Madrid, Spain). J. A. Capitán acknowledges funding by a contract from Comunidad de Madrid and Fondo Social Europeo. A.B. Kolton acknowledges ANPCYT (Grant No. PICT2007886, Argentina) and Universidad de Barcelona, Ministerio de Ciencia e Innovación (Spain), and Generalitat de Catalunya for partial support through the I3 program.
dc.format.extent 13
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher American Physical Society
dc.rights ©2011 American Physical Society
dc.subject.other Dynamics
dc.subject.other Roughness
dc.subject.other Creep
dc.title Crossed-ratchet effects and domain wall geometrical pinning
dc.type article
dc.subject.eciencia Física
dc.subject.eciencia Matemáticas
dc.identifier.doi 10.1103/PhysRevB.83.214403
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2009/ESP-1691/MODELICO
dc.relation.projectID Gobierno de España. FIS2008-06249
dc.relation.projectID Gobierno de España. HP2008-0032
dc.relation.projectID Gobierno de España. FIS2006-01485/MOSAICO
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 21 (214403)
dc.identifier.publicationlastpage 13
dc.identifier.publicationtitle Physical review. B. Condensed matter and materials physics
dc.identifier.publicationvolume 83
dc.identifier.uxxi AR/0000009157
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