Temperature and frequency dependences of real part of impedance in the FeCoZr-doped PZT nanogranular composites

The study of carrier transport in granular nanocomposite films consisting of ferromagnetic Fe 45 Co 45 Zr 10 alloy nanoparticles embedded in a low-conductive Pb 81 Sr 4 (Na 5 Bi 5 ) 15 (Zr 57.5 Ti 42.5 )O 3 matrix has been performed. Real part of the impedance of the nanocomposites was studied as a function of composition, temperature and frequency, for the samples with 25 ≤ x ≤ 80 at.