Abstract
A set of gadolinium thin films was prepared over Si(100) substrates by DC-operated planar magnetron sputtering deposition. This paper reports a change in the film texture by changing the sputtering working Ar gas pressure. An X-ray study of their structural properties shows that films have (0002) and (1010) orientations. On the other hand, their elastic properties have been studied by Surface Brillouin Light Scattering spectroscopy that provides the velocity of the surface acoustic waves. A simulation that takes into account values of thin film density and elastic constants tensor identical to the corresponding for bulk gadolinium shows good agreement between theory and experiment for (0002)-textured samples. Nevertheless, (1010)-textured films seem to have slightly different values of the elastic constant.
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