The structure and optical properties of AlN thin films synthesized at 800°C by Pulsed Laser Deposition were studied in
terms of ambient nitrogen pressure (10-4-10 Pa) and post-deposition cooling rate (5-25°C/min). X-ray diffraction
patterns showed the films were polycrystalline with predominantly cubic phase and small-sized crystallites. The
refractive index and oscillator energies values were also characteristic of the polycrystalline AlN with cubic structure.
In the present paper, a study concerning the in-vitro behaviour of Hydroxyapatite films obtained by Pulsed Laser
Deposition technique on titanium under different conditions was performed. The structures were immersed in Hank's
Solution for 21 days in accurately controlled environment conditions. Both film and immersion solution changes were
analyzed by means of XRD, SEM, EDX and X-Ray fluorescence respectively.
The obtained results point to an excellent behaviour of the obtained films as bioactive structures, recommending this type
of covering for further analysis in view of its use in orthopedic and dental implantology.
The half-metallic ferromagnetic chromium dioxide (Tc = 390 K) is a prospective material for spintronics applications. We employed pulsed laser deposition (PLD) to grow thin films of various chromium oxides. The experiments have been carried out in oxygen at different dynamical pressures, using a KrF* laser source (λ = 248 nm, τFWHM ≥ 30 ns), various chromium oxide targets, such as CrO3, Cr8O21 (the latter ones both pure and doped with Y and Sb respectively, for stabilization purposes) and sapphire substrates (c-cut). We optimized the laser fluence. To avoid CrO2 reduction to Cr2O3 in very thin films when kept in atmospheric air, we applied a protection with gold. X-ray diffraction, electron microscopy and Raman spectroscopy evidence uniform films containing CrO2.