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Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5303

Title: High magnetoelectric tuning effect in a polymer-based magnetostrictive-piezoelectric laminate under resonance drive
Authors: Duan, Yuanfeng
Leung, Chung Ming
Zhang, Shengyao
Zhang, Long
Or, Derek Siu-wing
Subjects: Dysprosium alloys
Eddy current losses
Filled polymers
Iron alloys
Laminates
Magnetic domain walls
Magnetoelectric effects
Particles reinforced composites
Piezoelectric materials
Terbium alloys
Issue Date: 1-Apr-2012
Publisher: American Institute of Physics
Citation: Journal of applied physics, 1 Apr. 2012, v. 111, no. 7, 07C717, p. 1-3.
Abstract: A polymer-based magnetoelectric (ME) laminate was fabricated by sandwiching one layer of thickness-polarized, length-stretched polyvinylidene fluoride (PVDF) piezoelectric polymer between two layers of length-magnetized, epoxy-bonded Tb₀.₃Dy₀.₇Fe₁.₉₂ (Terfenol-D) pseudo-1–3 magnetostrictive particulate composite in the thickness direction, and its resonance ME effect was investigated, both experimentally and theoretically, as a function of magnetic bias field (H[sub Bias]). The laminate showed a high ME voltage coefficient (α[sub V]) of 233 mV/Oe at the fundamental resonance frequency (f[sub r]) of 60.6 kHz under a relatively low H[sub Bias] of 0.6 kOe. By controlling H[sub Bias] in the range of 0.02–1.5 kOe, nonlinear tunabilities as high as 1382 and 8.6% were achieved for α[sub V] and f[sub r], respectively, as a result of the reduced eddy-current losses and enhanced non-180° domain-wall motion-induced negative-ΔE effect in the Terfenol-D composite layers as well as the increased compliance contribution from the PVDF polymer layer to allow the motion of non-180° domain walls in the Terfenol-D composite layers. This improved resonance ME tuning effect, together with the durable and tailorable natures, makes the laminate great promise for developing into tunable ME devices.
Description: DOI: 10.1063/1.3678321
Rights: © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Yuan-Feng Duan et al., J. Appl. Phys. 111, 07C717 (2012) and may be found at http://link.aip.org/link/?jap/111/07C717.
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/5303
ISSN: 0021-8979 (print)
1089-7550 (online)
Appears in Collections:EE Journal/Magazine Articles

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