Electric properties of nanocomposite films based on amorphous hydrogenated carbon

We report on the investigation results of electric properties of amorphous hydrogenated carbon with nickel nanoparticles, $\alpha$-C:H(Ni) on glassceramic substrates. The films are synthesized by reactive ion-plasma magnetron sputtering. The analysis results of the effect of nickel (Ni) concentration in dc conductivity $\sigma$ and the values of complex permittivity $\varepsilon$* in the frequency range 8–12 GHz are considered. The real part $\varepsilon$' of the complex permittivity of samples reaches 100, while the imaginary part $\varepsilon$" attains 212. The nickel concentration in the films corresponding to the percolation threshold amounts to 22–25 at %.