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Universal pinning energy barrier for driven domain walls in thin ferromagnetic films

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 نشر من قبل Vincent Jeudy
 تاريخ النشر 2016
  مجال البحث فيزياء
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We report a comparative study of magnetic field driven domain wall motion in thin films made of different magnetic materials for a wide range of field and temperature. The full thermally activated creep motion, observed below the depinning threshold, is shown to be described by a unique universal energy barrier function. Our findings should be relevant for other systems whose dynamics can be modeled by elastic interfaces moving on disordered energy landscapes.



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