Engineering magnetoelectric composites towards application as tunable microwave filters

Ciomaga, Cristina Elena; Avadanei, O. G.; Dumitru, Ioan; Airimioaei, Mirela; Tascu, Sorin; Tufescu, Florin Mihai; Mitoşeriu, Liliana

doi:10.1088/0022-3727/49/12/125002

Cited by 24 publications

(11 citation statements)

References 33 publications

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“…Recently, the progress made in the field of magnetoelectric (ME) laminate composites allows potential high performance applications such as magnetic field sensors [2][3][4][5], current sensors [6][7][8][9][10][11][12][13][14][15][16], gyrators [17], filters [18] and more recently, memory devices [19][20][21][22][23]. In the field of current sensors, magnetoelectric composites show many advantages : (i) high performances, (ii) low cost, (iii) power supply free, (iv) galvanic isolation and (v) simplified electronic circuits [24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced magnetoelectric voltage in ferrite/PZT/ferrite composite for AC current sensor application

Aubert

Loyau

Chaplier

et al. 2018

J Mater Sci: Mater Electron

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In this paper, we report the fabrication of a rare-earth free current sensor based on a PZT/NiCoZn-ferrite magnetoelectric (ME) trilayer composite disk. To improve the sensitivity of the sensor, the structure uses an in-plane series connection, which increases the ME voltage by two for a fixed volume. Then, we propose a full characterization of the sensor : electrical modeling, low and high frequency limits, sensitivity, linearity, distortion and resolution. The device is also evaluated under sinus, square, and triangle waveform currents, which are excitation signals commonly used in the field of electrical engineering. The current sensor shows high current sensitivity (90 mV/A), good linearity from 0.001 A to 30 A and low added impedance (0.01 Ω) in a frequency range of 10 Hz-30 kHz for a very compact structure (4 cm 3 ). It also exhibits a high resolution of 1 mA (for a 1 A peak signal) and good stability.

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Section: Introductionmentioning

confidence: 99%

Enhanced magnetoelectric voltage in ferrite/PZT/ferrite composite for AC current sensor application

Aubert

Loyau

Chaplier

et al. 2018

J Mater Sci: Mater Electron

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“…Hence, the combination of electrostrictive and magnetostrictive materials provides an advantage of using electric field as an input instead of using magnetic field which requires bulky magnets for producing high fields. When electric field is applied to ME composites, it produces mechanical deformation in the electrostrictive phase, which further produces magnetization in through magnetostrictive phenomena [7]. Selection of ferroelectric and ferromagnetic components in ME composites depends on various factors such as the Curie transition temperatures, piezoelectric properties, piezomagnetic properties, structural comparability etc.…”

Section: Introductionmentioning

confidence: 99%

“…Selection of ferroelectric and ferromagnetic components in ME composites depends on various factors such as the Curie transition temperatures, piezoelectric properties, piezomagnetic properties, structural comparability etc. Resistivity of the magnetostrictive phase should be high in order to avoid short circuit path for the ME voltage, developed in the ME composite [7].…”

Section: Introductionmentioning

confidence: 99%

Evidence of magneto-electric coupling and electrical study of CFO modified BNT/BT composites

Nanda¹,

Samanta²,

Goel³

et al. 2020

PAC

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(1-x)(0.93Bi 0.5 Na 0.5 TiO 3 /0.07BaTiO 3)-xCoFe 2 O 4 ((1-x)BNT/BT-xCFO, where x = 0.1, 0.2, 0.3, 0.4 and 0.5) composite samples were synthesized by microwave assisted solid state reaction route and sintered at 1050°C. X-ray diffraction study showed the presence of ferroelectric/ferromagnetic (FE/FM) phases without any peak of secondary phase. This was further confirmed by SEM study showing the presence of both FE/FM grains distinctly. Frequency dependent dielectric study showed maximum dielectric constant (ε r) for the composite sample with x = 0.4. Polarization versus electric field (P-E) loop study revealed that maximum remnant polarization (2P r = 1.75 µC/cm 2) was found also for the 0.6BNT/BT-0.4CFO sample. Remnant magnetization (M r) of the composite sample with x = 0.4 was found to be ∼7.81 emu/g. Magnetodielectric (MD) study of the 0.6BNT/BT-0.4CFO composite sample showed decrease in ε r with the application of magnetic field and a MD effect of ∼2.4% (at 10 kHz) was found. Low leakage current value (∼10 −4 A) was obtained in the 0.6BNT/BT-0.4CFO composite sample. Change in piezoresponse force microscopy contrast after poling indicated on the changes in polarization of the ferroelectric domains. Reduction in M r , observed in magnetic force microscopy contrast gave a clear evidence of presence of electric field induced magneto-electric (ME) coupling in the 0.6BNT/BT-0.4CFO composite sample.

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“…In magnetoelectric (ME) composites, electric field can control its magnetic properties and magnetic field can control its electric properties. In recent years, the potential application of the ME composites with the considerable ME coefficient at room temperature has attracted wide attention in the memorizers [1] [2], sensors [3] [4] and the MEMS devices [5] [6]. To improve the performance of the ME composite in their applications, the ME coefficient has to be discussed very often.…”

Section: Introductionmentioning

confidence: 99%

A Magentoelectric Coefficient Measurement System with a Free-Stress Sample Holder

Lu¹,

Wang²,

Wang³

et al. 2020

JMMCE

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With less extra stress on the testing sample, a free-stress sample holder was designed to place the sample horizontally. With the free-stress sample holder, a magnetoelectric (ME) coefficient measurement system was developed based on dynamic method. This measurement system has the hardware part and the software part, integrated by the DC magnetic field generation module, the AC magnetic field generation module, the induced ME voltage detecting module and PC software module. Then, a sample of Terfenol-D/PZT/Terfenol-D trilayer was designed and fabricated, and the relationships of its ME coefficient influenced by the DC magnetic field and the frequency of the AC magnetic field were tested using the measurement system. And the results showed that the free-stress sample holder was proven to improve the accuracy of the measurement system by less stress interference.

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Engineering magnetoelectric composites towards application as tunable microwave filters

Cited by 24 publications

References 33 publications

Enhanced magnetoelectric voltage in ferrite/PZT/ferrite composite for AC current sensor application

Enhanced magnetoelectric voltage in ferrite/PZT/ferrite composite for AC current sensor application

Evidence of magneto-electric coupling and electrical study of CFO modified BNT/BT composites

A Magentoelectric Coefficient Measurement System with a Free-Stress Sample Holder

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