Combined scanning tunneling microscopy and reflectance anisotropy spectroscopy study of self-organized anisotropic cobalt nanodots on a vicinal Au(111) surface - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2004

Combined scanning tunneling microscopy and reflectance anisotropy spectroscopy study of self-organized anisotropic cobalt nanodots on a vicinal Au(111) surface

N; Witkowski
G. Baudot
  • Fonction : Auteur
V. Repain
Y. Girard
  • Fonction : Auteur
S. Rousset

Résumé

We report on a combined study of two dimensional long-range ordered growth of anisotropic cobalt nanostructures on Au(11,12,12) by means of in-situ scanning tunneling microscopy (STM) and reflectance anisotropy spectroscopy (RAS). The main structure observed in the RA spectra originates from the plasma resonances that occur in the anisotropic Co nanostructures. A simple model allows us to reproduce the general behavior of this structure, in agreement with the Co nanostructure morphologies extracted from the STM images. Moreover, a real-time investigation by RAS during Co deposition at a fixed photon energy allows us to follow the self-organized growth regimes. RAS appears to be a versatile technique which is sensitive to the anisotropic shape of metal nanodots.
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Dates et versions

hal-00017049 , version 1 (16-01-2006)

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Citer

N; Witkowski, Y. Borensztein, G. Baudot, V. Repain, Y. Girard, et al.. Combined scanning tunneling microscopy and reflectance anisotropy spectroscopy study of self-organized anisotropic cobalt nanodots on a vicinal Au(111) surface. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 70, pp.085408. ⟨10.1103/PhysRevB.70.085408⟩. ⟨hal-00017049⟩
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