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Multiferroic Cantilevers Containing a Magnetoactive Elastomer: Magnetoelectric Response to Low-Frequency Magnetic Fields of Triangular and Sinusoidal Waveform

  • In this work, multiferroic cantilevers comprise a layer of a magnetoactive elastomer (MAE) and a commercially available piezoelectric polymer-based vibration sensor. The structures are fixed at one end in the horizontal plane and the magnetic field is applied vertically. First, the magnetoelectric (ME) response to uniform, triangle-wave magnetic fields with five different slew rates is investigated experimentally. Time and field dependences of the generated voltage, electric charge, and observed mechanical deflection are obtained and compared for four different thicknesses of the MAE layer. The ME responses to triangular and sinusoidal wave excitations are examined in contrast. Second, the ME response at low frequencies (≤3 Hz) is studied by the standard method of harmonic magnetic field modulation. The highest ME coupling coefficient is observed in the bias magnetic field strength of ≈73 kA/m and it is estimated to be about 3.3 ns/m (ME voltage coefficient ≈ 25 V/A) at theoretically vanishing modulation frequency (f→0 Hz). Presented results demonstrate that the investigated heterostructures are promising for applications as magnetic-field sensors and energy harvesting devices.

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Metadaten
Author:Gašper GlavanORCiD, Inna A. Belyaeva, Mikhail Shamonin (Chamonine)ORCiDGND
DOI:https://doi.org/10.3390/s22103791
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/35632200
Parent Title (English):Sensors
Publisher:MDPI
Place of publication:Basel
Document Type:Article
Language:English
Year of first Publication:2022
Release Date:2022/06/24
Tag:direct magnetoelectric effect; magnetic field sensing; magnetoactive elastomer; multilayer cantilever; piezoelectric polymer
Volume:22
Issue:10
Article Number:3791
First Page:1
Last Page:17
Note:
Corresponding authors: Gašper Glavan und Mikhail Shamonin
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen
Begutachtungsstatus:peer-reviewed
OpenAccess Publikationsweg:Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium
Corresponding author der OTH Regensburg
research focus:Produktion und Systeme
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International