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Asymmetric Magnetization Reversal of Stripe-Patterned Exchange Bias Layer Systems for Controlled Magnetic Particle Transport

Authors

  • Arno Ehresmann,

    Corresponding author
    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
    • Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany.
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  • Daniel Lengemann,

    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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  • Tanja Weis,

    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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  • Alla Albrecht,

    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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  • Jannick Langfahl-Klabes,

    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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  • Florian Göllner,

    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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  • Dieter Engel

    1. Department of Physics and Center for Interdisciplinary Nanostructure, Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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Abstract

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Domain wall movement assisted transport of particles: Exchange-biased samples with designed stripe-domains show strong stray fields and an asymmetric magnetization reversal. Using these characteristics superparamagnetic particles can be trapped and transported directly on the sample over large-scale areas. High particle velocities, small external fields, and automatically reduced particle clustering allow broad applicability of this transport method.

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