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The European Physical Journal D

, Volume 45, Issue 3, pp 521–528 | Cite as

Temperature dependent magnetic spin and orbital moments of mass-filtered cobalt clusters on Au(111)

  • J. BansmannEmail author
  • A. Kleibert
  • F. Bulut
  • M. Getzlaff
  • P. Imperia
  • C. Boeglin
  • K.-H. Meiwes-Broer
Magnetism

Abstract.

Mass-filtered cobalt clusters with a size of 8 nm have been deposited in-situ under soft-landing conditions onto Au(111). The spin and orbital moments of the Co nanoparticles on a Au (111) single crystal have been investigated as a function of the temperature using the element-specific method of X-ray magnetic circular dichroism in photoabsorption. The results hint at an temperature-dependent spin-reorientation transition which is discussed with respect to different contribution to the magnetic anisotropy. Furthermore, by means of an in-situ oxidation experiment, the influence of an exposure to oxygen on the properties of the cobalt clusters has been investigated.

PACS.

73.22.-f Electronic structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals 75.70.-i Magnetic properties of thin films, surfaces, and interfaces 75.75.+a Magnetic properties of nanostructures  81.07.-b Nanoscale materials and structures: fabrication and characterization 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • J. Bansmann
    • 1
    Email author
  • A. Kleibert
    • 2
  • F. Bulut
    • 3
  • M. Getzlaff
    • 3
  • P. Imperia
    • 4
  • C. Boeglin
    • 5
  • K.-H. Meiwes-Broer
    • 2
  1. 1.Institut für Oberflächenchemie und Katalyse, Universität UlmUlmGermany
  2. 2.Institut für Physik, Universität Rostock, Universitätsplatz 3RostockGermany
  3. 3.Institut für Angewandte Physik, Universität Düsseldorf, Universitätsstrasse 1DüsseldorfGermany
  4. 4.Institut für Experimentalphysik, Universität HamburgHamburgGermany
  5. 5.Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-Université Louis PasteurStrasbourg Cedex 2France

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