title: Creep and flow regimes of magnetic domain-wall motion in ultrathin Pt/Co/Pt films with perpendicular anisotropy.
abstract: We report on magnetic domain-wall velocity measurements in ultrathin Pt/Co(0.5-0.8 nm)/Pt films with perpendicular anisotropy over a large range of applied magnetic fields. The complete velocity-field characteristics are obtained, enabling an examination of the transition between thermally activated creep and viscous flow: motion regimes predicted from general theories for driven elastic interfaces in weakly disordered media. The dissipation limited flow regime is found to be consistent with precessional domain-wall motion, analysis of which yields values for the damping parameter, alpha.
authors.affiliation: Laboratoire de Physique des Solides, Université Paris-Sud, CNRS, UMR 8502, F-91405 Orsay Cedex, France. metaxas@lps.u-psud.fr
authors.forename: P J
authors.initials: PJ
authors.lastname: Metaxas
authors.forename: J P
authors.initials: JP
authors.lastname: Jamet
authors.forename: A
authors.initials: A
authors.lastname: Mougin
authors.forename: M
authors.initials: M
authors.lastname: Cormier
authors.forename: J
authors.initials: J
authors.lastname: Ferré
authors.forename: V
authors.initials: V
authors.lastname: Baltz
authors.forename: B
authors.initials: B
authors.lastname: Rodmacq
authors.forename: B
authors.initials: B
authors.lastname: Dieny
authors.forename: R L
authors.initials: RL
authors.lastname: Stamps