Nano-magnetic ferrites with composition Mg_1−xZn_xFe₂O₄ (x = 0.3, 0.4, 0.5, 0.6, and 0.7) have been prepared by coprecipitation method. X-ray diffraction (XRD) studies showed that the lattice parameter was found to increase from 8.402 to 8.424 Å with Zn²⁺ ion content from 0.3 to 0.7. Fourier transform infrared (FTIR) spectra revealed two prominent peaks corresponding to tetrahedral and octahedral at around 560 and 430 cm⁻¹ respectively that confirmed the spinel phase of the samples. Transmission electron microscopy (TEM) images showed that the particle size was noted to increase from 18 to 24 nm with an increase in Zn content from x = 0.3 to 0.7. The magnetic properties were studied by vibrating sample magnetometer (VSM) and electron paramagnetic resonance (EPR) which ascertained the superparamagnetic behavior of the samples and contribution of superexchange interactions. The maximum magnetization was found to vary from 23.80 to 32.78 emu/g that increased till x = 0.5 and decreased thereafter. Further, X-ray photoelectron spectroscopy (XPS) was employed to investigate the chemical composition and substantiate their oxidation states.

通过共沉淀法制备了组成为Mg _{1- x} Zn _x Fe ₂ O ₄（x = 0.3、0.4、0.5、0.6和0.7）的纳米磁性铁氧体。X射线衍射（XRD）研究表明，随着Zn ²⁺离子含量从0.3增加到0.7 ，晶格参数从8.402增加到8.424Å 。傅立叶变换红外（FTIR）光谱显示分别在560和430 cm ^-1处分别对应于四面体和八面体的两个突出峰，证实了样品的尖晶石相。透射电子显微镜（TEM）图像显示，随着Zn含量从x增加，粒径从18 nm增加到24 nm= 0.3至0.7。通过振动样品磁强计（VSM）和电子顺磁共振（EPR）研究了磁性，该振动学确定了样品的超顺磁性行为和超交换相互作用的贡献。发现最大磁化强度在23.80至32.78 emu / g之间变化，直至x = 0.5，此后下降。此外，X射线光电子能谱（XPS）用于研究化学成分并证实其氧化态。