Multiferroic Coupling of Ferromagnetic and Ferroelectric Particles through Elastic Polymers

Makarova, L.A.; Isaev, D.A.; Omelyanchik, A.S.; Alekhina, I.A.; Isaenko, M.B.; Rodionova, V.V.; Raikher, Y.L.; Perov, N.S.

Авторы: Makarova Liudmila A., Isaev Danil A., Omelyanchik Alexander S., Alekhina Iuliia A., Isaenko Matvey B., Rodionova Valeria V., Raikher Yuriy L., Perov Nikolai S.
Журнал: Polymers
Том: 14
Номер: 1
Год издания: 2022
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 1
Последняя страница: 11
Номер статьи: 153
DOI: 10.3390/polym14010153
Аннотация: Multiferroics are materials that electrically polarize when subjected to a magnetic fieldand magnetize under the action of an electric field. In composites, the multiferroic effect is achievedby mixing of ferromagnetic (FM) and ferroelectric (FE) particles. The FM particles are prone tomagnetostriction (field-induced deformation), whereas the FE particles display piezoelectricity(electrically polarize under mechanical stress). In solid composites, where the FM and FE grainsare in tight contact, the combination of these effects directly leads to multiferroic behavior. In thepresent work, we considered the FM/FE composites with soft polymer bases, where the particlesof alternative kinds are remote from one another. In these systems, the multiferroic coupling isdifferent and more complicated in comparison with the solid ones as it is essentially mediated by anelectromagnetically neutral matrix. When either of the fields, magnetic or electric, acts on the ‘akin’particles (FM or FE) it causes their displacement and by that perturbs the particle elastic environments.The induced mechanical stresses spread over the matrix and inevitably affect the particles of analternative kind. Therefore, magnetization causes an electric response (due to the piezoeffect in FE)whereas electric polarization might entail a magnetic response (due to the magnetostriction effectin FM). A numerical model accounting for the multiferroic behavior of a polymer composite of theabove-described type is proposed and confirmed experimentally on a polymer-based dispersion ofiron and lead zirconate micron-size particles.
Добавил в систему: Макарова Людмила Александровна

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Multiferroic Coupling of Ferromagnetic and Ferroelectric Particles through Elastic Polymersстатья Исследовательская статья

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