• M. Schöbitz
  • A. De Riz
  • S. Martin
  • S. Bochmann
  • C. Thirion
  • J. Vogel
  • M. Foerster
  • L. Aballe
  • T. O. Menteş
  • A. Locatelli
  • F. Genuzio
  • S. Le-Denmat
  • L. Cagnon
  • J. C. Toussaint
  • D. Gusakova
  • J. Bachmann
  • O. Fruchart

While the usual approach to tailor the behavior of condensed matter and nanosized systems is the choice of material or finite-size or interfacial effects, topology alone may be the key. In the context of the motion of magnetic domain walls (DWs), known to suffer from dynamic instabilities with low mobilities, we report unprecedented velocities >600 m/s for DWs driven by spin-transfer torques in cylindrical nanowires made of a standard ferromagnetic material. The reason is the robust stabilization of a DW type with a specific topology by the Œrsted field associated with the current. This opens the route to the realization of predicted new physics, such as the strong coupling of DWs with spin waves above >600 m/s.

Original languageEnglish
Article number217201
JournalPhysical Review Letters
Volume123
Issue number21
DOIs
StatePublished - 21 Nov 2019

    Scopus subject areas

  • Physics and Astronomy(all)

ID: 86103054