Polymer-based magnetoelectric materials: To be or not to be

Abstract

Nearly twenty years ago, the 'polymer-based magnetoelectrics' concept changed thinking in multiferroic magnetoelectric materials research, resulting in a generation of new highperformance materials and an increased focus on controlling structure, flexibility and electric output, as well as implementation into proof of concept applications. "To be, or not to be" is the opening phrase of a soliloquy speech by Prince Hamlet in the socalled "nunnery scene" of William Shakespeare's world famous play Hamlet. Act III, Scene I. There are many "interpretations" of such speech, nevertheless the most accepted ones are related to viable solutions to some problems, our attitude towards a fracturing event, if we should risk or remain passive and if the reward deserves the sacrifices. Hamlet was considering the difficulties and pondering a state of being versus a state of not beingbeing alive and being dead. The play was written in 1599-1601, at the same time that William Gilbert suggested that magnetism was "the soul of the Earth" (1600) and long before Gowen Knight produced the first artificial magnets for scientific research and navigation (1740); Hans Christian Oersted proved experimentally the physical relationship between electricity and magnetism (1820); the enunciation of the possibility of magnetoelectric (ME) effect on moving crystals by Pierre Curie (1894); the report of ME in composites of piezoelectric and piezomagnetic phases (1994); the renaissance of magnetoelectric effect (2005) and the publication of the first book on polymer-based ME materials (PBMM) (2017), summarizing the main achievements in the

Morphology Dependence Degradation of Electro- and Magnetoactive Poly(3-hydroxybutyrate-co-hydroxyvalerate) for Tissue Engineering Applications

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Survey of electromagnetic and magnetoelectric vibration energy harvesters for low frequency excitation

“…This is due to the high magnetoelectric coupling coefficient at ambient temperature of laminate composite formed by magnetostrictive and piezoelectric layers [65]. In general, the operating principle is that vibration is transformed first to a change of magnetic field via moving magnets.…”

Magnetic Proximity Sensor Based on Magnetoelectric Composites and Printed Coils

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