Domain wall manipulation with a magnetic tip

Link:
Autor/in:
Erscheinungsjahr:
2011
Medientyp:
Text
Schlagworte:
  • Adatoms
  • Spin
  • Magnetic atoms
  • Magnetic Anisotropy
  • Magnetization
  • Magnetism
  • Adatoms
  • Spin
  • Magnetic atoms
  • Magnetic Anisotropy
  • Magnetization
  • Magnetism
Beschreibung:
  • A theoretical concept of local manipulation of magnetic domain walls is introduced. In the proposed procedure, a domain wall is driven by a spin-polarized current induced by a magnetic tip, as used in a scanning tunneling microscope, placed above a magnetic nanostripe and then moved along its long axis with a current flowing through the vacuum barrier. The angular momentum from the spin-polarized current exerts a torque on the magnetic moments underneath the tip and leads to a displacement of the domain wall. Particularly, the manipulation of a ferromagnetic 180 degrees transverse domain wall has been studied by means of Landau-Lifshitz-Gilbert dynamics and Monte Carlo simulations. Different relative orientations of the tip and the sample magnetization have been considered.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/1aab3ce8-df78-4b93-a44b-23f841fe749e