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Article Dans Une Revue Journal of Physics: Condensed Matter Année : 2007

Growth modes of Fe(110) revisited: a contribution of self-assembly to magnetic materials

Olivier Fruchart
Mustafa Eleoui
  • Fonction : Auteur
Fabien Cheynis
Bogdana Borca
  • Fonction : Auteur
Annick Liénard
  • Fonction : Auteur
Manabu Hasegawa
  • Fonction : Auteur
Claire Meyer

Résumé

We have revisited the epitaxial growth modes of Fe on W(110) and Mo(110), and propose an overview or our contribution to the field. We show that the Stranski-Krastanov growth mode, recognized for a long time in these systems, is in fact characterized by a bimodal distribution of islands for growth temperature in the range 250-700°C. We observe firstly compact islands whose shape is determined by Wulff-Kaischev's theorem, secondly thin and flat islands that display a preferred height, ie independant from nominal thickness and deposition procedure (1.4nm for Mo, and 5.5nm for W on the average). We used this effect to fabricate self-organized arrays of nanometers-thick stripes by step decoration. Self-assembled nano-ties are also obtained for nucleation of the flat islands on Mo at fairly high temperature, ie 800°C. Finally, using interfacial layers and solid solutions we separate two effects on the preferred height, first that of the interfacial energy, second that of the continuously-varying lattice parameter of the growth surface.
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Dates et versions

hal-00089174 , version 1 (11-08-2006)

Identifiants

Citer

Olivier Fruchart, Pierre-Olivier Jubert, Mustafa Eleoui, Fabien Cheynis, Bogdana Borca, et al.. Growth modes of Fe(110) revisited: a contribution of self-assembly to magnetic materials. Journal of Physics: Condensed Matter, 2007, 19, pp.053001. ⟨10.1088/0953-8984/19/5/053001⟩. ⟨hal-00089174⟩

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