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Nickel‐Decorated Silver Nanowires for Polymer‐Based Magnetoelectric Composite

Martin, Baptiste and Dantras, Eric and Lonjon, Antoine and Laffont, Lydia and Lacabanne, Colette Nickel‐Decorated Silver Nanowires for Polymer‐Based Magnetoelectric Composite. (2021) Physica Status Solidi A. 2100037. ISSN 1862-6300

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Official URL: https://doi.org/10.1002/pssa.202100037

Abstract

Polymer-based magnetoelectric composites are processed with an intrinsic piezoelectric poly(vinylidenefluoride-co-trifluoroethylene) (P(VDF-TrFE)) matrix and high-aspect-ratio magnetic nickel–decorated silver nanowires. These core/ shell wires are obtained by the polyol reduction of Ni2+ ions on high-aspect-ratio silver nanowires. Scanning electron microscopy and transmission electron microscopy analyses show a homogeneous and well-crystallized nickel layer. Magnetic properties of the intrinsic particles and their composites are measured and show a strong enhancement of the coercive field compared to spherical Ni nanopowders. They also show the existence of strong magnetic anisotropy in the composites. The composites processed with a small amount of metallic particles (0.3 vol%) allow the maintaining of the P(VDF-TrFE) crystalline phase and the ability of a macroscopic polarization. The latter is conducted under a 80 MV m−1 field, leading to a significant d33 (3.2 pC N−1). Thus, the magnetoelectric properties are analyzed and an important coupling coefficient αME equal to 1.8 V m−1 Oe−1 is measured.

Item Type:Article
HAL Id:hal-03274801
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:30 Jun 2021 12:27

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