Study of domain wall propagation in nanostructured CoPt multilayers by using antisymmetric magnetoresistance

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jan 2010 Spain Publisher:IOP PublishingJournal:Journal of Physics: Conference Series, volume 200, page 42,021 (eissn: 1742-6596,

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Authors: Menéndez , Jl; Pérez-Junquera , A; Hierro-Rodriguez , A; Montenegro , N; Ravelosona , D; Alameda , Jm; Vélez , M; +1 Authors

doi: 10.1088/1742-6596/200/4/042021

handle: 10578/40657 , 10261/43862

Study of domain wall propagation in nanostructured CoPt multilayers by using antisymmetric magnetoresistance

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Abstract

Domain wall propagation has been studied in perpendicular anisotropy CoPt multilayers patterned by e-beam lithography into 5 µm wide wires. Positive and negative peaks appear in time resolved magnetoresistance curves, associated to the different directions of domain wall propagation along the wires. The field dependence of domain wall velocity is well described by a creep model of a 1D wall in the presence of weak disorder with critical exponent µ=1/4.

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Keywords

Domain wall propagation, Antisymmetric magnetoresistance, Nanostructured CoPt multilayers

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