Effect of metallic phase content on electrical properties of nanocomposites (FeCoZr)x(CaF2)100-x

This work presents the comparative analysis of electrical properties of nanocomposites (FeCoZr)
_x
(CaF
₂
)
_1-x
with different metallic phase contents x. Frequency and temperature dependencies on conductivity σ and phase shift angle θ of three samples of nanocomposite (FeCoZr)
_x
(CaF
₂
)
_1-x
produced by two-sources ion-beam sputtering by two-component beam consisting argon Ar and oxygen O
₂
were analyzed. Sample with lower metallic phase content x = 27 at.% showed dielectric character of conductivity and almost invariable frequency dependencies on conductivity σ. From frequency dependencies on phase shift angle can be seen that the sample haves inductive character which resulting from positive values of θ. In the samples with higher metallic phase content 49 at.% and 63 at.% the conductivity changes character, and negative values of phase shift angle indicate about capacitive character of samples.