Physics of Composites for Low-Frequency Magnetoelectric Devices

Бичурин, М. И.; Sokolov, Oleg; Иванов, С. Н.; Lobekin, Viktor; Petrov, D. A.; Semenov, Gennady; Lobekin, Vyacheslav

doi:10.3390/s22134818

Cited by 13 publications

(17 citation statements)

References 38 publications

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“…Furthermore, we observed an intriguing phenomenon where the optimum operating frequency of the ME composite decreased from 51.15 to 10.59 kHz, accompanied by a shift in the dominant vibration mode from longitudinal to bending. This transition to bending vibration modes primarily stems from the asymmetric structure of the two phases. − Tensile tests revealed that Metglas and PVDF possess Young’s moduli of 114.65 and 3.48 GPa, respectively. It is evident that PVDF exhibits a stiffness significantly lower than that of Metglas, resulting in minimal binding and restraint on the deformation of Metglas under a magnetic field.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, when the peak of the bending vibration increases, the peak of the longitudinal vibration mode decreases and the vibration mode becomes dominated by the bending vibration mode. 30,47 Additionally, the overall thinning of the composite material enhances the compliance coefficient, favoring the bending vibration mode. 30,47 The α ME serves as a crucial parameter in the characterization of ME properties of composites.…”

Section: Me Performancementioning

confidence: 99%

“…30,47 Additionally, the overall thinning of the composite material enhances the compliance coefficient, favoring the bending vibration mode. 30,47 The α ME serves as a crucial parameter in the characterization of ME properties of composites. As mentioned earlier, researchers are particularly interested in achieving high α ME values at low frequencies to meet the requirements of detecting low-frequency weak magnetic fields.…”

Section: Me Performancementioning

confidence: 99%

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Low-Frequency and High-Sensitivity PVDF/Metglas Magnetoelectric Sensor Based on Bending Vibration Mode

Zhang,

Yang,

Fan

et al. 2024

ACS Appl. Electron. Mater.

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The bending vibration modes of asymmetric magnetoelectric (ME) laminated composites operate in a lowfrequency range, but the small value of the ME voltage coefficient (α ME ) at bending vibration frequencies currently hinders the application of ME magnetic sensors at lower frequencies. In this study, poly(vinylidene fluoride) (PVDF) and Metglas were combined by adhesive bonding method to manufacture laminated ME composites. The average stiffness of ME composites was reduced by using vacuum packing technique to modulate the dominant vibration mode from longitudinal to bending. After treatment, the dominant resonance frequency and the DC bias field of the samples with a length of 30 mm were reduced from 51.15 kHz and 3.7 Oe to 10.59 kHz and 2.35 Oe, respectively. The α ME of the samples was significantly increased to 493.7 V•cm −1 •Oe −1 , which is approximately 2.5 times higher than that of the untreated samples. Remarkable magnetic sensing capabilities at low frequencies of the treated samples were also were found. At 10.59 kHz, the samples had a large sensitivity of 2522.33 mV•Oe −1 , an excellent linearity of 0.99985, and good resolutions of 0.4 nT for AC and 2.4 nT for DC magnetic fields, respectively. In addition, samples of different sizes were prepared for comparison. The experimental results obtained from these samples were consistent with those of the original samples. These findings highlight the effectiveness of reducing the average stiffness of composites through the vacuum packing technique in reducing the resonance frequency, optimizing the bias field, and increasing the α ME value. This technique provides a valuable approach to the development of low-frequency and highly sensitive magnetic field sensors.

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Section: Resultsmentioning

confidence: 99%

Section: Me Performancementioning

confidence: 99%

Section: Me Performancementioning

confidence: 99%

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Low-Frequency and High-Sensitivity PVDF/Metglas Magnetoelectric Sensor Based on Bending Vibration Mode

Zhang,

Yang,

Fan

et al. 2024

ACS Appl. Electron. Mater.

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“…On the other hand, multiferroic magnetoelectric (ME) composites demonstrate fascinating phenomenon in electricmagnetoelectric conversion, promising application in various functional devices, including antennas. [27][28][29][30][31][32] Schneider et al report a multiferroic antenna using a PZT stack to produce dynamic axial compressive stresses in a FeGa rod. [33] Similarly, Sun et al designed a bulk magnetoelectric (ME) antenna composed of PZT fibers and Metglas (FeSiB) films.…”

Section: Introductionmentioning

confidence: 99%

Magneto‐Mechano‐Electric Antenna for Portable VLF Transmission

Jiang

Liu

et al. 2023

Adv Elect Materials

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Wireless communication has always been an indispensable element in the modern information‐based society. Beyond the commercial electrical antenna, very low frequency (VLF) mechanical antennas have recently become research hotspot since their combination of miniaturization and favorable radiation efficiency in lossy electrically conductive environments. However, their usage is challenged due to the relatively limited radiation capability and modulation bandwidth. This study demonstrates an improved high‐efficiency magnetoelectric (ME) mechanical antenna based on the magneto‐mechano‐electric (MME) effect, realized via the synergistic effect of piezo‐driven magnets motion and converse magnetoelectricity (ME). Converse ME coefficient and radiation measurement show that the MME antenna demonstrates superior performance over a normal ME antenna. The oscillation magnet serves as an extra vibrating magnetic dipole besides the ME composite and thus brings radiation enhancement to the mechanical antenna. Furthermore, digital signal modulations are conducted with a VLF carrier signal to enable anti‐interference and anti‐attenuation communication. In view of the exemplary demonstration, the MME effect‐based antenna is expected to provide a new strategy for mechanical antenna improvement and shows tremendous potential for conductive environments communication applications.

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“…При изучении МЭ связи в области изгибных деформаций обычно используют двухслойные структуры пьезоэлектрик-ферромагнетик [15]. Наряду с ними, с целью повышения эффективности МЭ преобразования, стали использовать трех-и четырехслойные асимметричные структуры.…”

Section: Introductionunclassified

Теория Квазистатического Магнитоэлектрического Взаимодействия В Трехслойных Асимметричных Пьезомагнитострикционных Структурах

Филиппов¹,

Галкина²,

Маничева³

2023

Журнал Технической Физики

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The work is devoted to the theoretical investigation of the quasi-static magnetoelectric interaction in three-layer structures consisting of a piezoelectric and two magnetic layers with positive and negative magnetostriction. Using the system of elasto- and electrostatics equations for the piezoelectric and magnetostrictive phases, expressions for the electrical response of the structure in a magnetic field are obtained. The contributions from longitudinal and bending deformations are taken into account in value of ME interactions. It is shown that the use of an asymmetric three-layer asymmetric structure leads to an increase in the magnitude of the ME interaction by almost an order of magnitude compared to a two-layer structure. The dependences of the effect magnitude on the thickness of the third layer for the nickel/lead zirconate titanate/metglas structure are presented.

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Physics of Composites for Low-Frequency Magnetoelectric Devices

Cited by 13 publications

References 38 publications

Low-Frequency and High-Sensitivity PVDF/Metglas Magnetoelectric Sensor Based on Bending Vibration Mode

Low-Frequency and High-Sensitivity PVDF/Metglas Magnetoelectric Sensor Based on Bending Vibration Mode

Magneto‐Mechano‐Electric Antenna for Portable VLF Transmission

Теория Квазистатического Магнитоэлектрического Взаимодействия В Трехслойных Асимметричных Пьезомагнитострикционных Структурах

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