article · Applied Surface Science Advances
Y-type hexaferrites represent the first identified ferroxplana ferrites, distinguished by spontaneous magnetisation in the basal c-plane perpendicular to the c-axis. These materials, characterised by the formula A2Me2Fe12O22, where A is typically barium or strontium and Me is a divalent metal ion, offer a wide range of adjustable functional properties. Existing literature focuses heavily on diverse synthesis and characterisation routes, often employing metal substitutions across the A, Me, and iron sites to modify material behaviour. Most studies have specifically analysed the structural and magnetic properties of these substituted variants. Evaluated across prior research, the synthesised materials demonstrate distinct suitability for integration into magnetoelectric systems, microwave devices, and modern equipment used in information and communication processing.
Hexaferrites are essential magnetic materials used to manage electromagnetic signals. Understanding how different chemical substitutions and synthesis methods alter the magnetic and structural properties of Y-type hexaferrites helps researchers design tailored materials for electronics, enabling more effective components for advanced communication hardware and microwave technologies.
The material review highlights potential deployment in microwave devices, magnetoelectric components, and information and communication processing hardware. Potential users include manufacturers and designers of advanced communications electronics. Because the underlying evidence comes from a synthesis and characterisation review of laboratory research, the work remains at an early stage of applied development rather than near market deployment.
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Ferromagnetic properties of hexaferrites induce magnetisation inside their crystal structure, separating them into uniaxial and ferroxplana hexaferrites. Y-type is the first observed ferroxplana ferrite with spontaneous magnetization in the basal c-plane perpendicular to the c-axis. Y-type is a material class that exhibits a more comprehensive range of adjustable characteristics. This article provides a comprehensive overview of the synthesis methods to produce Y-type hexaferrite (A2Me2Fe12O22, where A can be Ba or Sr and Me is any divalent metal ion) and techniques used to characterize its properties. Due to the potential applications of Y-type hexaferrites, numerous authors synthesized several kinds of Y-type hexaferrite using a variety of metal substitutions for Me, Fe, and A. Most research on Y-type hexaferrite has concentrated on its structural and magnetic characteristics to investigate magnetoelectric and microwave (MW) device applications. In this review, we reported the suitability of Y-type hexaferrite for multiple applications in current information and communication processing equipment according to the previous findings.
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DOI: 10.1016/j.apsadv.2023.100416
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