“…In addition, Ni ferrites are unique in several properties with modified applications, such as high-frequency applications, electronic devices with low loss, and many technical applications, such as in magnetic fluids, catalysts, magnetic storage systems, photomagnetic materials, magnetic resonance imaging, site-specific drug delivery, sensors, and so on. ,,− It is well known that when the nickel ferrite is sufficiently doped with divalent atoms, it can show a great improvement in its physical properties . The divalent dopants, such as Co 2+ , Fe 2+ , Cr 2+ , Mn 2+ , Gd 2+ , and so forth, replace the nickel ions in the octahedral sites that leads to the linear variation in physical properties of nickel ferrite. − However, unlike other divalent dopants, zinc (Zn 2+ ) tends to occupy the tetrahedral site of nickel ferrite structure due to its higher ionic radius and completely filled electronic configuration. This unique nature leads to the variation in the cationic distribution, exchange interaction, and bond angle of interstitial sites in spinel ferrites, which consequently affects the physical properties to greater extent in a non-linear trend.…”