Cobalt on calcium fluoride: Initial stages of growth and magnetic properties

L. Pasquali, B. P. Doyle, F. Borgatti, A. Giglia, N. Mahne, M. Pedio, S. Nannarone, A. K. Kaveev, A. S. Balanev, B. B. Krichevtsov, S. M. Suturin, N. S. Sokolov

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Epitaxial cobalt films on CaF2(1 1 0) buffer layers on Si(0 0 1) were grown by molecular beam epitaxy. It is found that Co grows in a face-centered cubic lattice forming nanodimensional islands. The islands tend to align along the parallel grooves which characterize the self-patterned CaF2(1 1 0) surface grown on Si(0 0 1). Photoemission was used to probe the uniformity of the film and the occurrence of chemical reactions with the substrate. X-ray magnetic circular dichroism at the Co L2,3 edges was used to access the magnetic properties of the films. The thick Co film presents an in-plane easy magnetization axis along the directions of the grooves of the CaF2(1 1 0) surface.

Original languageEnglish
Pages (from-to)4170-4175
Number of pages6
JournalSurface Science
Issue number18
Publication statusPublished - 15 Sept 2006
Externally publishedYes


  • Atomic force microscopy
  • Calcium fluoride
  • Cobalt
  • Photoemission
  • XMCD

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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