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Ferromagnetic Microwire Composites : From Sensors to Microwave Applications (Hardcover) (Faxiang Qin &
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This book is centered at the forefront of an interdisciplinary subject: multifunctional magnetic microwires and their composites and applications. After introducing general background information and progress made in this exciting field, the book describes techniques for the fabrication of magnetic microwires and their relationships to microwire structures and properties. The author places particular emphasis on the so-called giant magnetoimpedance (GMI) effect discovered in these microwires – which is the foundation for developing high-performance magnetic sensors – and presents a systematic treatment of the theoretical and experimental aspects of the GMI effect. Accordingly, the key criteria for selecting suitable magnetic microwires are defined, thus providing excellent guidance on optimizing the GMI response in existing materials, as well as developing new materials with improved GMI properties for present and future sensor device applications. This is followed by a detailed description of different types of GMI sensors and their potential applications. As a logical transition from single components to composite materials, the remaining part of the book describes how ferromagnetic microwires can be incorporated into a polymer matrix to create a new class of composite materials with a wide range of functionalities for sensor and microwave device applications. Readers are shown state-of-the-art fabrication methods; microwave tunable properties, absorption and shielding behaviors; and the metamaterial characteristics of these newly developed composites. Lastly, the author takes a critical approach to suggesting potential applications for these microwire-based composite materials so as to pinpoint the most promising perspectives, current challenges and possible solutions.