Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/43507

TitleImproved magnetodielectric coefficient on polymer based composites through enhanced indirect magnetoelectric coupling
Author(s)Martins, P.
Silva, D.
Silva, M. P.
Lanceros-Méndez, S.
Issue date2016
PublisherAIP Publishing
JournalApplied Physics Letters
CitationMartins, P., Silva, D., Silva, M. P., & Lanceros-Mendez, S. (2016). Improved magnetodielectric coefficient on polymer based composites through enhanced indirect magnetoelectric coupling. Applied Physics Letters, 109(11). doi: 10.1063/1.4963003
Abstract(s)Particulate composites of ferrite and ferroelectric polymer phases with general formula [xCoFe2O4]/[(1-x) PVDF] were prepared for x = 0, 3, 11 and 20 wt.% by solution casting. The dielectric constant, dielectric loss and saturation magnetization of the polymer composite films increase with increasing CoFe2O4 (CFO) content, being 13, 0.13 and 13 emu.g-1 respectively, for x=20. The magnetodielectric (MD) coupling also depend on the CFO content, the change in the dielectric response (MDE(%)) being the highest for the x=20 sample (4.2%). On the other hand, the highest value of the MD coefficient (γ) is higher on the x=3 sample (0.015 emu-2g2). Those values are favourably compared with the ones found in the ceramic-based MD materials, being the highest reported for polymer composites. These facts, together with the flexibility and scalable production of the composites, leads to their large application potential in areas such as filters, magnetic field sensors and actuators, among others.
TypeArticle
URIhttp://hdl.handle.net/1822/43507
DOI10.1063/1.4963003
ISSN0003-6951
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - FCD - Artigos/Papers (with refereeing)

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