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Raman spectroscopy has been used as a local probe to characterize the structural evolution of magnetron-sputtered decorative zirconium oxynitride ZrOxNy films which result from an increase of reactive gas flow in the deposition The lines shapes, the frequency position and widths of the Raman bands show a systematic change as a function of the reactive gas flow (a mixture of both oxygen and nitrogen). The as-deposited zirconium nitride film presents a Raman spectrum with the typical broadened bands, due to the disorder induced by N vacancies. The recorded Raman spectrum of the zirconium oxide film is typical of the monoclinic phase of ZrO2, which is shown also by X-ray diffraction. Raman spectra of zirconium oxynitride thin films present changes, which are found to be closely related with the oxygen content in films and the subsequent structural changes. ; FCT institution by the project nº POCTI/CTM/38086/2001 co-financed by European community fund FEDER ; European Union through the NMP3-CT-2003 505948 project ...

11 pages, 11 figures.-- ISI article identifier:000267776100008 .-- ArXiv pre-print avaible at: http://arxiv.org/abs/0904.0796 ; Neutrino radiography may provide an alternative tool to study the very deep structures of the Earth. Though these measurements are unable to resolve the fine density layer features, nevertheless the information which can be obtained are independent and complementary to the more conventional seismic studies. The aim of this paper is to assess how well the core and mantle averaged densities can be reconstructed through atmospheric neutrino radiography. We find that about a 2% sensitivity for the mantle and 5% for the core could be achieved for a ten year data taking at an underwater km(3) Neutrino Telescope. This result does not take into account systematics related to the details of the experimental apparatus. ; This work is supported by the Istituto Nazionale di Fisica Nucleare I.S. Fa51, the PRIN 2006 "Fisica Astroparticellare: Neutrini ed Universo Primordiale" of the Italian Minis- tero dell'Istruzione, Universit`a e Ricerca, the Spanish MICINN (grants SAB2006-0171 and FPA2008-00319), by a MICINN-INFN agreement, and by the European Union under the ILIAS project (Contract No. RII3-CT-2004-506222).