Growth and magnetic domain structure of ultrathin Fe films on Rh(001)

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Autor/in:
Erscheinungsjahr:
2015
Medientyp:
Text
Schlagworte:
  • Ultrathin films
  • Magnetic anisotropy
  • Iron
  • Magnetic Anisotropy
  • Magnetization
  • Magnetism
  • Ultrathin films
  • Magnetic anisotropy
  • Iron
  • Magnetic Anisotropy
  • Magnetization
  • Magnetism
Beschreibung:
  • The growth and magnetic domain structure of ultrathin Fe films epitaxially grown on face-centered cubic (fcc) Rh(001) is investigated by spin-polarized scanning tunneling microscopy (SP-STM) at low temperatures (T = 5.5K). Our results indicate that the cleaning procedure applied to the Rh(001) substrate plays an important role for the formation of a clean and well-ordered Fe film. The Fe monolayer exhibits an out-of-plane antiferromagnetic c(2 × 2) spin structure. Islands of the second Fe layer are found to be out-of-plane ferromagnetic. Coalescence of the double-layer islands results in the formation of larger domains, which extend over several hundred nanometers for a closed two layer film. Further increasing the Fe coverage leads to a reduction of the domain size and the formation of patterns that are reminiscent of stripe domains driven by the competition of surface/interface and shape anisotropy.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/9d043eee-df96-4723-9447-f10a7232d8a1