Advancements in modification strategies for Co2Z ferrite: Towards high-frequency and high-performance materials

High-performance magnetic materials are critical for the advancements of wireless communication technologies, particularly in the realization of device miniaturization, efficient impedance matching, and low losses performance. Co₂Z ferrite (Ba₃Co₂Fe₂₄O₄₁) is a promising material for radio frequency communication and microwave devices due to its favorable high-frequency magnetic properties and low-loss characteristics. Nevertheless, its performance still requires further optimization to meet the increasing demands of high-frequency applications.

Although extensive research on fabricating high-performance Co₂Z ferrite has been carried out, a comprehensive review summarizing performance optimization strategies is still lacking, as existing review articles are mainly focused on the preparation methods, such as co-precipitation, sol-gel and solid-state sintering, of Co₂Z ferrite, as well as their applications. In contrast, Wang et al. from Xi’an University of Technology presents a systematic review, published by Frontiers of Materials Science, of the latest advances in modification strategies, including ion doping, sintering additives, composite fabrication, and texture engineering. It highlights the mechanisms through which each strategy regulates magnetic and dielectric properties. Furthermore, practical guidance is provided for the design and fabrication of high-performance Co₂Z ferrites, so as to promote their application in high-frequency devices.