Morphology of nanocermet thin films: x-ray scattering study
S. Hazra1, A. Gibaud1, A. Desert1, C. Sella2 and A. Naudon3
1 Laboratoire de Physique de l'Etat Condensé, UPRESA 6087 CNRS, Faculté des Sciences, Université du Maine, 72085 Le Mans, France
2 Laboratoire d'Optique des Solides, Université de Paris VI, 75006 Paris, France
3 Laboratoire de Metallurgie Physique, Université de Poitiers, Poitiers, France

The morphology of ceramic-metal nanocermet thin films is studied by surface sensitive x-ray scattering techniques.Grazing incidence small angle x-ray scattering (GISAXS) experiments carried out at LURE with a 2D detector show that metal clusters of nanometer size, known as nanoparticles, are dispersed in the thin film. Analyses of the x-ray reflectivity along with the diffuse scattering allow to predict the formation of layers of nanoparticles along the growth direction of the films. The formation of such cumulative disordered layers in one direction is likely to be related to the boundary condition in the reduced dimension.