Detection of a single synthetic antiferromagnetic nanoparticle with an AMR nanostructure: Comparison between simulations and experiments

M. Donolato, M. Gobbi, M. Cantoni, R. Bertacco, P. Vavassori, V. Metlushko, B. Ilic, M. Zhang, S.X. Wang, Mikkel Fougt Hansen, P. Vavassori

    Research output: Contribution to journalConference articleResearchpeer-review


    The depinning field of a domain wall in a permalloy nanostructure can be used to detect the presence of a magnetic particle. In this device the displacement of the domain wall in a sweeping magnetic field produces a variation of the voltage drop across a corner due to the anisotropic magnetoresistance effect and hence an electrical signal. In this paper we use micromagnetic simulations to calculate the output signal of a particularly shaped device in the presence of a single synthetic antiferromagnetic nanoparticle. The calculated magnetoresistive signal is in good agreement with corresponding experimental data © 2010 IOP Publishing Ltd.
    Original languageEnglish
    Book seriesJournal of Physics: Conference Series
    Pages (from-to)UNSP 122001
    Publication statusPublished - 2010
    EventInternational Conference on Magnetism 2009 - Karlsruhe, Germany
    Duration: 26 Jul 200931 Jul 2009


    ConferenceInternational Conference on Magnetism 2009

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