Chapter 6a

Applications of Polymer-Based Magnetoelectric Materials

Sensors, Actuators, Antennas, and Memories

Sílvia Reis

Sílvia Reis

Universidade do Minho, Centro de Física, Campus de Gualtar, Braga, 4710-057 Portugal

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Marco Silva

Marco Silva

Universidade do Minho, Centro de Física, Campus de Gualtar, Braga, 4710-057 Portugal

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Pedro Martins

Pedro Martins

Universidade do Minho, Centro de Física, Campus de Gualtar, Braga, 4710-057 Portugal

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Senentxu Lanceros-Mendez

Senentxu Lanceros-Mendez

Universidade do Minho, Centro de Física, Campus de Gualtar, Braga, 4710-057 Portugal

BCMaterials, Basque Center for Materials, Applications and Nanostructures, Parque Científico y Tecnológico de Bizkaia, Bld 500, 48160 Derio, Spain

IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Spain

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First published: 07 July 2017

Summary

Polymer-based magnetoelectric (ME) materials have been investigated to find applications in magnetic field sensors, actuators, energy-harvesting devices, filters, oscillators, miniature antennas, memories and biomedical devices, among others. The applicability of polymer-based ME materials as sensors depends on some fundamental characteristics including full-scale (FS) input, sensitivity, linearity, hysteresis, accuracy, repeatability, and resolution [15]. ME sensors can detect static and dynamic magnetic fields. ME actuators can take advantage of the converse ME effect, producing a magnetic field by applying a voltage or the direct ME effect, where a magnetic field causes a deformation in the magnetostrictive materials, which will deform the piezoelectric material resulting in a voltage variation. ME materials are extremely attractive for applications as antennas, similar to the one designed by Wang et al.. The design and characterization of a miniaturized 100MHz antenna based on ME composites was first reported by Petrov et al.

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