Effect of Zn addition on electrophysical properties of nickel ferrite thin films

Abstract

A series of nanocrystalline film materials Ni[Formula: see text]Zn[Formula: see text]Fe2O4([Formula: see text] = 0.0, 0.1, 0.3, 0.5) are first synthesized by solid-phase pyrolysis. The results of the X-ray diffraction pattern show that the obtained films consist of nanocrystallites with an average size of 18–21 nm. The sizes of nanocrystals increase with increasing zinc content. The temperature dependence of the resistance becomes pronounced for films with a high concentration of zinc (Ni[Formula: see text]Zn[Formula: see text]Fe2O4 and Ni[Formula: see text]Zn[Formula: see text]Fe2O4).