Ferromagnetic Microwire Composites

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. §