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Domain wall displacement in Py square ring for single nanometric magnetic bead detection

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 نشر من قبل Marco Donolato
 تاريخ النشر 2008
  مجال البحث فيزياء
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A new approach based on the domain wall displacement in confined ferromagnetic nanostructures for attracting and sensing a single nanometric magnetic particles is presented. We modeled and experimentally demonstrated the viability of the approach using an anisotropic magnetoresistance device made by a micron-size square ring of Permalloy designed for application in magnetic storage. This detection concept can be suitable to biomolecular recognition, and in particular to single molecule detection.

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