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

Vincent Jeudy; Alexandra Mougin; Sebastian Bustingorry; Williams Savero Torres; Jon Gorchon; Alejandro Kolton; Aristide Lemaître; Jean-Pierre Jamet

doi:10.1103/PhysRevLett.117.057201

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

Mesoscale and Nanoscale Physics 2016-08-03 v1 Disordered Systems and Neural Networks

Authors: Vincent Jeudy , Alexandra Mougin , Sebastian Bustingorry , Williams Savero Torres , Jon Gorchon , Alejandro Kolton , Aristide Lemaître , Jean-Pierre Jamet

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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.

Keywords

domain wall motion ferromagnetic films pinning energy barrier creep motion depinning threshold universal energy barrier elastic interfaces

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@article{arxiv.1603.01674,
  title  = {Universal pinning energy barrier for driven domain walls in thin ferromagnetic films},
  author = {Vincent Jeudy and Alexandra Mougin and Sebastian Bustingorry and Williams Savero Torres and Jon Gorchon and Alejandro Kolton and Aristide Lemaître and Jean-Pierre Jamet},
  journal= {arXiv preprint arXiv:1603.01674},
  year   = {2016}
}

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10 pages, 3 figures

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

Abstract

Keywords

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