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

Abstract

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 numerous strategies have been devised to optimize the magnetic and dielectric properties of Co₂Z ferrite, a comprehensive review of these modification strategies remains notably lacking. This review provides a systematic summary 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.

Graphical abstract

Keywords

Co₂Z ferrite / modification strategy / magnetic performance / dielectric performance

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