title: Universal Pinning Energy Barrier for Driven Domain Walls in Thin Ferromagnetic Films.
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.
authors: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France.
authors: V
authors: V
authors: Jeudy
authors: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France.
authors: A
authors: A
authors: Mougin
authors: CONICET, Centro Atómico Bariloche, 8400 San Carlos de Bariloche, Río Negro, Argentina.
authors: S
authors: S
authors: Bustingorry
authors: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France.
authors: W
authors: W
authors: Savero Torres
authors: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France.
authors: J
authors: J
authors: Gorchon
authors: CONICET, Centro Atómico Bariloche, 8400 San Carlos de Bariloche, Río Negro, Argentina.
authors: A B
authors: AB
authors: Kolton
authors: Laboratoire de Photonique et de Nanostructures, CNRS, Université Paris-Saclay, 91460 Marcoussis, France.
authors: A
authors: A
authors: Lemaître
authors: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France.
authors: J-P
authors: JP
authors: Jamet