Universal Pinning Energy Barrier for Driven Domain Walls in Thin Ferromagnetic Films

V. Jeudy, A. Mougin, S. Bustingorry, W. Savero Torres, J. Gorchon, A. B. Kolton, A. Lemaître, and J.-P. Jamet
Phys. Rev. Lett. 117, 057201 – Published 29 July 2016
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Abstract

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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  • Received 8 March 2016

DOI:https://doi.org/10.1103/PhysRevLett.117.057201

© 2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

V. Jeudy1,†, A. Mougin1, S. Bustingorry2, W. Savero Torres1, J. Gorchon1, A. B. Kolton2, A. Lemaître3, and J.-P. Jamet1,*

  • 1Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France
  • 2CONICET, Centro Atómico Bariloche, 8400 San Carlos de Bariloche, Río Negro, Argentina
  • 3Laboratoire de Photonique et de Nanostructures, CNRS, Université Paris-Saclay, 91460 Marcoussis, France

  • *Deceased.
  • vincent.jeudy@u-psud.fr

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Issue

Vol. 117, Iss. 5 — 29 July 2016

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